The OVAL Repository 5.6 2010-03-11T04:31:50.463-05:00 Cisco IOS The RSA Crypto-C before 6.3.1 and Cert-C before 2.8 libraries, as used by RSA BSAFE, multiple Cisco products, and other products, allows remote attackers to cause a denial of service via malformed ASN.1 objects. Yuzheng Zhou DRAFT INTERIM ACCEPTED Dragos Prisaca INTERIM Thomas R. Jones ACCEPTED ACCEPTED Cisco IOS The TCL shell in Cisco IOS 12.2(14)S before 12.2(14)S16, 12.2(18)S before 12.2(18)S11, and certain other releases before 25 January 2006 does not perform Authentication, Authorization, and Accounting (AAA) command authorization checks, which may allow local users to execute IOS EXEC commands that were prohibited via the AAA configuration, aka Bug ID CSCeh73049. Yuzheng Zhou DRAFT INTERIM ACCEPTED Dragos Prisaca INTERIM Dragos Prisaca ACCEPTED ACCEPTED Cisco IOS Buffer overflow in Firewall Authentication Proxy for FTP and/or Telnet Sessions for Cisco IOS 12.2ZH and 12.2ZL, 12.3 and 12.3T, and 12.4 and 12.4T allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted user authentication credentials. Yuzheng Zhou DRAFT INTERIM ACCEPTED Dragos Prisaca INTERIM ACCEPTED ACCEPTED Cisco IOS Certain Cisco IOS releases in 12.2S based trains with maintenance release number 25 and later, 12.3T based trains, and 12.4 based trains reuse a Tcl Shell process across login sessions of different local users on the same terminal if the first user does not use tclquit before exiting, which may cause subsequent local users to execute unintended commands or bypass AAA command authorization checks, aka Bug ID CSCef77770. Yuzheng Zhou DRAFT INTERIM ACCEPTED Dragos Prisaca INTERIM Dragos Prisaca ACCEPTED ACCEPTED Cisco IOS SNMPv3 HMAC verification in (1) Net-SNMP 5.2.x before 5.2.4.1, 5.3.x before 5.3.2.1, and 5.4.x before 5.4.1.1; (2) UCD-SNMP; (3) eCos; (4) Juniper Session and Resource Control (SRC) C-series 1.0.0 through 2.0.0; (5) NetApp (aka Network Appliance) Data ONTAP 7.3RC1 and 7.3RC2; (6) SNMP Research before 16.2; (7) multiple Cisco IOS, CatOS, ACE, and Nexus products; and (8) Ingate Firewall 3.1.0 and later and SIParator 3.1.0 and later relies on the client to specify the HMAC length, which makes it easier for remote attackers to bypass SNMP authentication via a length value of 1, which only checks the first byte. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cross-site scripting (XSS) vulnerability in Cisco IOS Web Server for IOS 12.0(2a) allows remote attackers to inject arbitrary web script or HTML by (1) packets containing HTML that an administrator views via an HTTP interface to the contents of memory buffers, as demonstrated by the URI /level/15/exec/-/buffers/assigned/dump; or (2) sending the router Cisco Discovery Protocol (CDP) packets with HTML payload that an administrator views via the CDP status pages. NOTE: these vectors were originally reported as being associated with the dump and packet options in /level/15/exec/-/show/buffers. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple unspecified vulnerabilities in the Internet Key Exchange version 1 (IKEv1) implementation in multiple Cisco products allow remote attackers to cause a denial of service (device reset) via certain malformed IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of details in the Cisco advisory, it is unclear which of CVE-2005-3666, CVE-2005-3667, and/or CVE-2005-3668 this issue applies to. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 to 12.4 might allow remote attackers to execute arbitrary code via a heap-based buffer overflow in system timers. NOTE: this issue does not correspond to a specific vulnerability, rather a general weakness that only increases the feasibility of exploitation of any vulnerabilities that might exist. Such design-level weaknesses normally are not included in CVE, so perhaps this issue should be REJECTed. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple TCP/IP and ICMP implementations, when using Path MTU (PMTU) discovery (PMTUD), allow remote attackers to cause a denial of service (network throughput reduction for TCP connections) via forged ICMP ("Fragmentation Needed and Don't Fragment was Set") packets with a low next-hop MTU value, aka the "Path MTU discovery attack." NOTE: CVE-2004-0790, CVE-2004-0791, and CVE-2004-1060 have been SPLIT based on different attacks; CVE-2005-0065, CVE-2005-0066, CVE-2005-0067, and CVE-2005-0068 are related identifiers that are SPLIT based on the underlying vulnerability. While CVE normally SPLITs based on vulnerability, the attack-based identifiers exist due to the variety and number of affected implementations and solutions that address the attacks instead of the underlying vulnerabilities. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.1YD, 12.2T, 12.3 and 12.3T, when configured for the IOS Telephony Service (ITS), CallManager Express (CME) or Survivable Remote Site Telephony (SRST), allows remote attackers to cause a denial of service (device reboot) via a malformed packet to the SCCP port. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple vulnerabilities in the H.323 protocol implementation for Cisco IOS 11.3T through 12.2T allow remote attackers to cause a denial of service and possibly execute arbitrary code, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco Gigabit Switch Routers (GSR) with Fast Ethernet / Gigabit Ethernet cards, from IOS versions 11.2(15)GS1A up to 11.2(19)GS0.2 and some versions of 12.0, do not properly handle line card failures, which allows remote attackers to bypass ACLs or force the interface to stop forwarding packets. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 11.1(x) through 11.3(x) and 12.0(x) through 12.2(x), when configured for BGP routing, allows remote attackers to cause a denial of service (device reload) via malformed BGP (1) OPEN or (2) UPDATE messages. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows remote attackers to execute arbitrary code via a malformed SIP packet, aka CSCsi80749. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Memory leak in the TCP listener in Cisco IOS 9.x, 10.x, 11.x, and 12.x allows remote attackers to cause a denial of service by sending crafted TCP traffic to an IPv4 address on the IOS device. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS after 12.3(14)T, 12.3(8)YC1, 12.3(8)YG, and 12.4, with voice support and without Session Initiated Protocol (SIP) configured, allows remote attackers to cause a denial of service (crash) by sending a crafted packet to port 5060/UDP. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The Network Analysis Module (NAM) in Cisco Catalyst Series 6000, 6500, and 7600 allows remote attackers to execute arbitrary commands via certain SNMP packets that are spoofed from the NAM's own IP address. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 12000 with IOS 12.0 and lines card based on Engine 2 does not properly handle an outbound ACL when an input ACL is not configured on all the interfaces of a multi port line card, which could allow remote attackers to bypass the intended access controls. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Memory leak in the virtual private dial-up network (VPDN) component in Cisco IOS before 12.3 allows remote attackers to cause a denial of service (memory consumption) via a series of PPTP sessions, related to "dead memory" that remains allocated after process termination, aka bug ID CSCsj58566. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the Extensible Authentication Protocol (EAP) implementation in Cisco IOS 12.3 and 12.4 on Cisco Access Points and 1310 Wireless Bridges (Wireless EAP devices), IOS 12.1 and 12.2 on Cisco switches (Wired EAP devices), and CatOS 6.x through 8.x on Cisco switches allows remote attackers to cause a denial of service (device reload) via a crafted EAP Response Identity packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Integer overflow in OpenSSL 0.9.6 and 0.9.7 allows remote attackers to cause a denial of service (crash) via an SSL client certificate with certain ASN.1 tag values. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS In Cisco IOS 10.3, with the tacacs-ds or tacacs keyword, an extended IP access control list could bypass filtering. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Internet Key Exchange (IKE) version 1 protocol, as implemented on Cisco IOS, VPN 3000 Concentrators, and PIX firewalls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of IKE Phase-1 packets that exceed the session expiration rate. NOTE: it has been argued that this is due to a design weakness of the IKE version 1 protocol, in which case other vendors and implementations would also be affected. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS CORE SDI SSH1 CRC-32 compensation attack detector allows remote attackers to execute arbitrary commands on an SSH server or client via an integer overflow. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Buffer overflow in ntpd ntp daemon 4.0.99k and earlier (aka xntpd and xntp3) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long readvar argument. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The IOS FTP Server in Cisco IOS 11.3 through 12.4 allows remote authenticated users to cause a denial of service (IOS reload) via unspecified vectors involving transferring files (aka bug ID CSCse29244). Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 through 12.4 and IOS XR before 3.2, with IPv6 enabled, allows remote attackers on a local network segment to cause a denial of service (device reload) and possibly execute arbitrary code via a crafted IPv6 packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Heap-based buffer overflow in the TFTP server capability in Cisco IOS 11.1, 11.2, and 11.3 allows remote attackers to cause a denial of service (reset) or modify configuration via a long filename. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Extended Interior Gateway Routing Protocol (EIGRP) 1.2, as implemented in Cisco IOS after 12.3(2), 12.3(3)B, and 12.3(2)T and other products, allows remote attackers to cause a denial of service by sending a "spoofed neighbor announcement" with (1) mismatched k values or (2) "goodbye message" Type-Length-Value (TLV). Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Secure Shell (SSH) 2 in Cisco IOS 12.0 through 12.3 allows remote attackers to cause a denial of service (device reload) (1) via a username that contains a domain name when using a TACACS+ server to authenticate, (2) when a new SSH session is in the login phase and a currently logged in user issues a send command, or (3) when IOS is logging messages and an SSH session is terminated while the server is sending data. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not support the "fragment" keyword in an outgoing ACL, which could allow fragmented packets in violation of the intended access. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The Cisco Intrusion Prevention System (IPS) and IOS with Firewall/IPS Feature Set do not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple unspecified vulnerabilities in the SSH server in Cisco IOS 12.4 allow remote attackers to cause a denial of service (device restart) via unknown vectors, aka Bug ID (1) CSCsk42419, (2) CSCsk60020, and (3) CSCsh51293. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS OpenSSL 0.9.6k allows remote attackers to cause a denial of service (crash via large recursion) via malformed ASN.1 sequences. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not handle the "fragment" keyword in a compiled ACL (Turbo ACL) for packets that are sent to the router, which allows remote attackers to cause a denial of service via a flood of fragments. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the server side of the Secure Copy (SCP) implementation in Cisco 12.2-based IOS allows remote authenticated users to read, write or overwrite any file on the device's filesystem via unknown vectors. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst 2950T switches allows remote attackers to cause a denial of service (device reboot) via a crafted Subset-Advert message packet, a different issue than CVE-2006-4774, CVE-2006-4775, and CVE-2006-4776. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Buffer overflow in Cisco IOS 11.2.x to 12.0.x allows remote attackers to cause a denial of service and possibly execute commands via a large number of OSPF neighbor announcements. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service via (1) a malformed MGCP packet, which causes a device hang, aka CSCsf08998; a malformed H.323 packet, which causes a device crash, as identified by (2) CSCsi60004 with Proxy Unregistration and (3) CSCsg70474; and a malformed Real-time Transport Protocol (RTP) packet, which causes a device crash, as identified by (4) CSCse68138, related to VOIP RTP Lib, and (5) CSCse05642, related to I/O memory corruption. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS In Cisco routers under some versions of IOS 12.0 running NAT, some packets may not be filtered by input access list filters. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The virtual private dial-up network (VPDN) component in Cisco IOS before 12.3 allows remote attackers to cause a denial of service (resource exhaustion) via a series of PPTP sessions, related to the persistence of interface descriptor block (IDB) data structures after process termination, aka bug ID CSCdv59309. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The Service Assurance Agent (SAA) in Cisco IOS 12.0 through 12.2, aka Response Time Reporter (RTR), allows remote attackers to cause a denial of service (crash) via malformed RTR packets to port 1967. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 2.2(18)EW, 12.2(18)EWA, 12.2(14)SZ, 12.2(18)S, 12.2(18)SE, 12.2(18)SV, 12.2(18)SW, and other versions without the "no service dhcp" command, keep undeliverable DHCP packets in the queue instead of dropping them, which allows remote attackers to cause a denial of service (dropped traffic) via multiple undeliverable DHCP packets that exceed the input queue size. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco devices IOS 12.0 and earlier allow a remote attacker to cause a crash, or bad route updates, via malformed BGP updates with unrecognized transitive attribute. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create "extra multicast states on the core routers" via a crafted Multicast Distribution Tree (MDT) Data Join message. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 through 12.3YL, with BGP enabled and running the bgp log-neighbor-changes command, allows remote attackers to cause a denial of service (device reload) via a malformed BGP packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not block non-initial packet fragments, which allows remote attackers to bypass the ACL. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The "established" keyword in some Cisco IOS software allowed an attacker to bypass filtering. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.1T, 12.2, 12.2T, 12.3 and 12.3T, with Multi Protocol Label Switching (MPLS) installed but disabled, allows remote attackers to cause a denial of service (device reload) via a crafted packet sent to the disabled interface. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2 through 12.4 before 20060920, as used by Cisco IAD2430, IAD2431, and IAD2432 Integrated Access Devices, the VG224 Analog Phone Gateway, and the MWR 1900 and 1941 Mobile Wireless Edge Routers, is incorrectly identified as supporting DOCSIS, which allows remote attackers to gain read-write access via a hard-coded cable-docsis community string and read or modify arbitrary SNMP variables. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 9.x, 10.x, 11.x, and 12.x and IOS XR 2.0.x, 3.0.x, and 3.2.x allows remote attackers to cause a denial of service or execute arbitrary code via a crafted IP option in the IP header in a (1) ICMP, (2) PIMv2, (3) PGM, or (4) URD packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Buffer overflow in the Next Hop Resolution Protocol (NHRP) functionality in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (restart) and execute arbitrary code via a crafted NHRP packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS before 12.3-7-JA2 on Aironet Wireless Access Points (WAP) allows remote authenticated users to cause a denial of service (termination of packet passing or termination of client connections) by sending the management interface a large number of spoofed ARP packets, which creates a large ARP table that exhausts memory, aka Bug ID CSCsc16644. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Memory leak in Secure Shell (SSH) in Cisco IOS 12.0 through 12.3, when authenticating against a TACACS+ server, allows remote attackers to cause a denial of service (memory consumption) via an incorrect username or password. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS IP Security VPN Services Module (VPNSM) in Cisco Catalyst 6500 Series Switch and the Cisco 7600 Series Internet Routers running IOS before 12.2(17b)SXA, before 12.2(17d)SXB, or before 12.2(14)SY03 could allow remote attackers to cause a denial of service (device crash and reload) via a malformed Internet Key Exchange (IKE) packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS TCP, when using a large Window Size, makes it easier for remote attackers to guess sequence numbers and cause a denial of service (connection loss) to persistent TCP connections by repeatedly injecting a TCP RST packet, especially in protocols that use long-lived connections, such as BGP. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0, 12.1, and 12.2, when GRE IP tunneling is used and the RFC2784 compliance fixes are missing, does not verify the offset field of a GRE packet during decapsulation, which leads to an integer overflow that references data from incorrect memory locations, which allows remote attackers to inject crafted packets into the routing queue, possibly bypassing intended router ACLs. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The Data-link Switching (DLSw) feature in Cisco IOS 11.0 through 12.4 allows remote attackers to cause a denial of service (device reload) via "an invalid value in a DLSw message... during the capabilities exchange." Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Crosscom/Olicom XLT-F running XL 80 IM Version 5.5 Build Level 2 allows a remote attacker SNMP read and write access via a default, undocumented community string 'ILMI'. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple SSH2 servers and clients do not properly handle lists with empty elements or strings, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Implementations of SSH version 1.5, including (1) OpenSSH up to version 2.3.0, (2) AppGate, and (3) ssh-1 up to version 1.2.31, in certain configurations, allow a remote attacker to decrypt and/or alter traffic via a "Bleichenbacher attack" on PKCS#1 version 1.5. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2T, 12.3 and 12.3T, when processing an ISAKMP profile that specifies XAUTH authentication after Phase 1 negotiation, may not process certain attributes in the ISAKMP profile that specifies XAUTH, which allows remote attackers to bypass XAUTH and move to Phase 2 negotiations. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS MD5 Neighbor Authentication in Extended Interior Gateway Routing Protocol (EIGRP) 1.2, as implemented in Cisco IOS 11.3 and later, does not include the Message Authentication Code (MAC) in the checksum, which allows remote attackers to sniff message hashes and (1) replay EIGRP HELLO messages or (2) cause a denial of service by sending a large number of spoofed EIGRP neighbor announcements, which results in an ARP storm on the local network. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.4 and earlier, when using the crypto packages and SSL support is enabled, allows remote attackers to cause a denial of service via a malformed (1) ClientHello, (2) ChangeCipherSpec, or (3) Finished message during an SSL session. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly filter does not properly filter packet fragments even when the "fragment" keyword is used in an ACL, which allows remote attackers to bypass the intended access controls. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple memory leaks in Cisco IOS 12.0 through 12.4 allow remote attackers to cause a denial of service (device crash) via a malformed SIP packet, aka (1) CSCsf11855, (2) CSCeb21064, (3) CSCse40276, (4) CSCse68355, (5) CSCsf30058, (6) CSCsb24007, and (7) CSCsc60249. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 11.1CC through 12.2 with Cisco Express Forwarding (CEF) enabled includes portions of previous packets in the padding of a MAC level packet when the MAC packet's length is less than the IP level packet length. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple SSH2 servers and clients do not properly handle strings with null characters in them when the string length is specified by a length field, which could allow remote attackers to cause a denial of service or possibly execute arbitrary code due to interactions with the use of null-terminated strings as implemented using languages such as C, as demonstrated by the SSHredder SSH protocol test suite. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device crash) via (1) "abnormal" MGCP messages, aka CSCsd81407; and (2) a large facsimile packet, aka CSCej20505. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 through 12.2, when supporting SSH, allows remote attackers to cause a denial of service (CPU consumption) via a large packet that was designed to exploit the SSH CRC32 attack detection overflow (CVE-2001-0144). Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0S through 12.3YH allows remote attackers to cause a denial of service (device restart) via a crafted IPv6 packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.1(2)T, 12.1(3)T allow remote attackers to cause a denial of service (reload) via a connection to TCP ports 3100-3999, 5100-5999, 7100-7999 and 10100-10999. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The data-link switching (DLSw) component in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device restart or memory consumption) via crafted (1) UDP port 2067 or (2) IP protocol 91 packets. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2 and earlier running Cisco Discovery Protocol (CDP) allows remote attackers to cause a denial of service (memory consumption) via a flood of CDP neighbor announcements. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a password when an invalid username is provided, which allows remote attackers to identify valid usernames on the system and conduct brute force password guessing, as reported for the Aironet Bridge. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The default configuration of IOS HTTP server in Cisco Router Web Setup (CRWS) before 3.3.0 build 31 does not require credentials, which allows remote attackers to access the server with arbitrary privilege levels, aka bug CSCsa78190. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 6000, 6500, and 7600 series systems with Multilayer Switch Feature Card 2 (MSFC2) and a FlexWAN or OSM module allow local users to cause a denial of service (hang or reset) by sending a layer 2 frame packet that encapsulates a layer 3 packet, but has inconsistent length values with that packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The Session Initiation Protocol (SIP) implementation in Alcatel OmniPCX Enterprise 5.0 Lx allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted INVITE messages, as demonstrated by the OUSPG PROTOS c07-sip test suite. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The ATOMIC.TCP signature engine in the Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XA, 12.3YA, 12.3T, and other trains allows remote attackers to cause a denial of service (IPS crash and traffic loss) via unspecified manipulations that are not properly handled by the regular expression feature, as demonstrated using the 3123.0 (Netbus Pro Traffic) signature. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The web server for Cisco Aironet AP1x00 Series Wireless devices running certain versions of IOS 12.2 allow remote attackers to cause a denial of service (reload) via a malformed URL. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Land IP denial of service. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 6400 Access Concentrator Node Route Processor 2 (NRP2) 12.1DC card does not properly disable access when a password has not been set for vtys, which allows remote attackers to obtain access via telnet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in Cisco IOS and Cisco IOS XR 12.x up to 12.3, including some versions before 12.3(15) and 12.3(14)T, allows remote attackers to obtain sensitive information (partial packet contents) or cause a denial of service (router or component crash) via crafted IPv6 packets with a Type 0 routing header. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco Internetwork Operating System (IOS) 12.0S through 12.3T attempts to process SNMP solicited operations on improper ports (UDP 162 and a randomly chosen UDP port), which allows remote attackers to cause a denial of service (device reload and memory corruption). Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple SSH2 servers and clients do not properly handle large packets or large fields, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code via buffer overflow attacks, as demonstrated by the SSHredder SSH protocol test suite. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in Cisco Unified Communications Manager (CUCM) 5.0, 5.1, and 6.0, and IOS 12.0 through 12.4, allows remote attackers to execute arbitrary code via a malformed SIP packet, aka CSCsi80102. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2T, 12.3 and 12.3T, when using Easy VPN Server XAUTH version 6 authentication, allows remote attackers to bypass authentication via a "malformed packet." Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS allows remote attackers to cause a denial of service (crash) via a crafted IPv6 Type 0 Routing header. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XE to 12.3T allows remote attackers to bypass IPS signatures that use regular expressions via fragmented packets. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS PPTP implementation in Cisco IOS 12.1 and 12.2 allows remote attackers to cause a denial of service (crash) via a malformed packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.1, 12.2, 12.3, and 12.4, with IPv4 UDP services and the IPv6 protocol enabled, allows remote attackers to cause a denial of service (device crash and possible blocked interface) via a crafted IPv6 packet to the device. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly handle the implicit "deny ip any any" rule in an outgoing ACL when the ACL contains exactly 448 entries, which can allow some outgoing packets to bypass access restrictions. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2E, 12.2F, and 12.2S places a "no login" line into the VTY configuration when an administrator makes certain changes to a (1) VTY/AUX or (2) CONSOLE setting on a device without AAA enabled, which allows remote attackers to bypass authentication and obtain a terminal session, a different vulnerability than CVE-1999-0293 and CVE-2005-2105. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in Cisco IOS 12.2SXA, SXB, SXD, and SXF; and the MSFC2, MSFC2a and MSFC3 running in Hybrid Mode on Cisco Catalyst 6000, 6500 and Cisco 7600 series systems; allows remote attackers on a local network segment to cause a denial of service (software reload) via a certain MPLS packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 and other versions can be crashed by malicious UDP packets to the syslog port. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS Firewall Feature set, aka Context Based Access Control (CBAC) or Cisco Secure Integrated Software, for IOS 11.2P through 12.2T does not properly check the IP protocol type, which could allow remote attackers to bypass access control lists. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The HTTP server in Cisco IOS 12.0 through 12.1 allows local users to cause a denial of service (crash and reload) via a URL containing a "?/" string. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The IOS HTTP service in Cisco routers and switches running IOS 11.1 through 12.1 allows remote attackers to cause a denial of service by requesting a URL that contains a %% string. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.4, when IOS firewall Application Inspection Control (AIC) with HTTP Deep Packet Inspection is enabled, allows remote attackers to cause a denial of service (device reload) via a malformed HTTP transit packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in Cisco IOS 12.2 and 12.4, when the L2TP mgmt daemon process is enabled, allows remote attackers to cause a denial of service (device reload) via a crafted L2TP packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2 and 12.3 on Cisco uBR10012 series devices, when linecard redundancy is configured, enables a read/write SNMP service with "private" as the community, which allows remote attackers to obtain administrative access by guessing this community and sending SNMP requests. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 through 12.4 on Gigabit Switch Router (GSR) devices (aka 12000 Series routers) allows remote attackers to cause a denial of service (device crash) via a malformed Protocol Independent Multicast (PIM) packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the Multi Protocol Label Switching (MPLS) Forwarding Infrastructure (MFI) in Cisco IOS 12.2 and 12.4 allows remote attackers to cause a denial of service (memory corruption) via crafted packets for which the software path is used. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device reload) via a crafted Protocol Independent Multicast (PIM) packet. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the Session Initiation Protocol (SIP) implementation in Cisco IOS 12.2 through 12.4, when VoIP is configured, allows remote attackers to cause a denial of service (device reload) via unspecified valid SIP messages, aka Cisco bug ID CSCsk42759, a different vulnerability than CVE-2008-3800 and CVE-2008-3801. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2 and 12.4, when NAT Skinny Call Control Protocol (SCCP) Fragmentation Support is enabled, allows remote attackers to cause a denial of service (device reload) via segmented SCCP messages, aka Cisco Bug ID CSCsi17020, a different vulnerability than CVE-2008-3810. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.0 through 12.4 on Cisco 10000, uBR10012 and uBR7200 series devices handles external UDP packets that are sent to 127.0.0.0/8 addresses intended for IPC communication within the device, which allows remote attackers to cause a denial of service (device or linecard reload) via crafted UDP packets, a different vulnerability than CVE-2008-3806. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS A "logic error" in Cisco IOS 12.0 through 12.4, when a Multiprotocol Label Switching (MPLS) VPN with extended communities is configured, sometimes causes a corrupted route target (RT) to be used, which allows remote attackers to read traffic from other VPNs in opportunistic circumstances. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Memory leak in the Session Initiation Protocol (SIP) implementation in Cisco IOS 12.2 through 12.4, when VoIP is configured, allows remote attackers to cause a denial of service (memory consumption and voice-service outage) via unspecified valid SIP messages. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the Session Initiation Protocol (SIP) implementation in Cisco IOS 12.2 through 12.4 and Unified Communications Manager 4.1 through 6.1, when VoIP is configured, allows remote attackers to cause a denial of service (device or process reload) via unspecified valid SIP messages, aka Cisco Bug ID CSCsm46064, a different vulnerability than CVE-2008-3800 and CVE-2008-3802. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The SERVICE.DNS signature engine in the Intrusion Prevention System (IPS) in Cisco IOS 12.3 and 12.4 allows remote attackers to cause a denial of service (device crash or hang) via network traffic that triggers unspecified IPS signatures, a different vulnerability than CVE-2008-1447. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Unspecified vulnerability in the Session Initiation Protocol (SIP) implementation in Cisco IOS 12.2 through 12.4 and Unified Communications Manager 4.1 through 6.1, when VoIP is configured, allows remote attackers to cause a denial of service (device or process reload) via unspecified valid SIP messages, aka Cisco Bug ID CSCsu38644, a different vulnerability than CVE-2008-3801 and CVE-2008-3802. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.4 allows remote attackers to cause a denial of service (device crash) via a normal, properly formed SSL packet that occurs during termination of an SSL session. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS Cisco IOS 12.2 and 12.4, when NAT Skinny Call Control Protocol (SCCP) Fragmentation Support is enabled, allows remote attackers to cause a denial of service (device reload) via segmented SCCP messages, aka CSCsg22426, a different vulnerability than CVE-2008-3811. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED Cisco IOS The IOS FTP Server in Cisco IOS 11.3 through 12.4 does not properly check user authorization, which allows remote authenticated users to execute arbitrary code and read and write arbitrary files, as demonstrated by reading startup-config, aka bug ID CSCek55259. Yuzheng Zhou DRAFT INTERIM ACCEPTED ACCEPTED