Cisco IOS IPv6 packet command execution

cisco-ios-ipv6-packet-command-execution (21591)

High Risk

Description:

Cisco devices running Cisco Internetworking Operating System Software (IOS) versions could allow a remote attacker to execute arbitrary commands. A remote attacker could send a specially-crafted IPv6 packet from a local network segment to cause a denial of service or possibly execute arbitrary commands.

NOTE: Cisco devices must be configured to process IPv6 traffic in order for this vulnerability to exist.

Consequences:

Gain Access

Remedy:

Upgrade to the latest fixed Cisco IOS version, as listed in Cisco Security Advisory 2005 January 19 1500 UTC. See References.

References:

• CIAC Information Bulletin P-262: Cisco IPv6 Crafted Packet Vulnerability.
• Cisco Security Advisory 2005 July 29 0800 UTC : IPv6 Crafted Packet Vulnerability.
• Internet Security Systems Protection Advisory July 29, 2005: Cisco IOS Remote Code Execution Technique.
• BID-14414: Cisco IOS IPv6 Processing Arbitrary Code Execution Vulnerability
• CVE-2005-2451: 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.
• OSVDB ID: 18332: Cisco IOS Crafted IPv6 Packet Remote Code Execution
• SA16272: Cisco IOS IPv6 Packet Handling Vulnerability
• SECTRACK ID: 1014598: Cisco IOS IPv6 Bug Lets Remote Users Execute Arbitrary Code
• US-CERT VU#930892: Cisco IOS vulnerable to DoS or arbitrary code execution via specially crafted IPv6 packet

Platforms Affected:

• Cisco IOS 12.0S
• Cisco IOS 12.0SL
• Cisco IOS 12.0ST
• Cisco IOS 12.0SX
• Cisco IOS 12.0SY
• Cisco IOS 12.1XU
• Cisco IOS 12.1XV
• Cisco IOS 12.1YB
• Cisco IOS 12.1YC
• Cisco IOS 12.1YD
• Cisco IOS 12.1YE
• Cisco IOS 12.1YF
• Cisco IOS 12.1YH
• Cisco IOS 12.1YI
• Cisco IOS 12.2B
• Cisco IOS 12.2BC
• Cisco IOS 12.2BW
• Cisco IOS 12.2BX
• Cisco IOS 12.2BY
• Cisco IOS 12.2BZ
• Cisco IOS 12.2CX
• Cisco IOS 12.2CY
• Cisco IOS 12.2CZ
• Cisco IOS 12.2DD
• Cisco IOS 12.2DX
• Cisco IOS 12.2EU
• Cisco IOS 12.2EW
• Cisco IOS 12.2EWA
• Cisco IOS 12.2EX
• Cisco IOS 12.2EY
• Cisco IOS 12.2EZ
• Cisco IOS 12.2JA
• Cisco IOS 12.2JK
• Cisco IOS 12.2MB
• Cisco IOS 12.2MC
• Cisco IOS 12.2MX
• Cisco IOS 12.2S
• Cisco IOS 12.2SE
• Cisco IOS 12.2SEA
• Cisco IOS 12.2SEB
• Cisco IOS 12.2SEC
• Cisco IOS 12.2SO
• Cisco IOS 12.2SU
• Cisco IOS 12.2SV
• Cisco IOS 12.2SW
• Cisco IOS 12.2SX
• Cisco IOS 12.2SXA
• Cisco IOS 12.2SXB
• Cisco IOS 12.2SXD
• Cisco IOS 12.2SXE
• Cisco IOS 12.2SY
• Cisco IOS 12.2SZ
• Cisco IOS 12.2T
• Cisco IOS 12.2XA
• Cisco IOS 12.2XB
• Cisco IOS 12.2XC
• Cisco IOS 12.2XD
• Cisco IOS 12.2XE
• Cisco IOS 12.2XF
• Cisco IOS 12.2XG
• Cisco IOS 12.2XH
• Cisco IOS 12.2XI
• Cisco IOS 12.2XJ
• Cisco IOS 12.2XK
• Cisco IOS 12.2XL
• Cisco IOS 12.2XM
• Cisco IOS 12.2XN
• Cisco IOS 12.2XQ
• Cisco IOS 12.2XR
• Cisco IOS 12.2XU
• Cisco IOS 12.2XW
• Cisco IOS 12.2XZ
• Cisco IOS 12.2YA
• Cisco IOS 12.2YB
• Cisco IOS 12.2YC
• Cisco IOS 12.2YD
• Cisco IOS 12.2YE
• Cisco IOS 12.2YF
• Cisco IOS 12.2YG
• Cisco IOS 12.2YH
• Cisco IOS 12.2YJ
• Cisco IOS 12.2YK
• Cisco IOS 12.2YL
• Cisco IOS 12.2YM
• Cisco IOS 12.2YN
• Cisco IOS 12.2YO
• Cisco IOS 12.2YP
• Cisco IOS 12.2YQ
• Cisco IOS 12.2YR
• Cisco IOS 12.2YT
• Cisco IOS 12.2YU
• Cisco IOS 12.2YV
• Cisco IOS 12.2YW
• Cisco IOS 12.2YX
• Cisco IOS 12.2YY
• Cisco IOS 12.2YZ
• Cisco IOS 12.2ZA
• Cisco IOS 12.2ZB
• Cisco IOS 12.2ZC
• Cisco IOS 12.2ZD
• Cisco IOS 12.2ZE
• Cisco IOS 12.2ZF
• Cisco IOS 12.2ZG
• Cisco IOS 12.2ZH
• Cisco IOS 12.2ZJ
• Cisco IOS 12.2ZL
• Cisco IOS 12.2ZN
• Cisco IOS 12.2ZO
• Cisco IOS 12.2ZP
• Cisco IOS 12.3
• Cisco IOS 12.3B
• Cisco IOS 12.3BC
• Cisco IOS 12.3BW
• Cisco IOS 12.3JA
• Cisco IOS 12.3JK
• Cisco IOS 12.3T
• Cisco IOS 12.3XA
• Cisco IOS 12.3XB
• Cisco IOS 12.3XC
• Cisco IOS 12.3XD
• Cisco IOS 12.3XE
• Cisco IOS 12.3XF
• Cisco IOS 12.3XG
• Cisco IOS 12.3XH
• Cisco IOS 12.3XI
• Cisco IOS 12.3XJ
• Cisco IOS 12.3XK
• Cisco IOS 12.3XL
• Cisco IOS 12.3XM
• Cisco IOS 12.3XQ
• Cisco IOS 12.3XR
• Cisco IOS 12.3XS
• Cisco IOS 12.3XT
• Cisco IOS 12.3XU
• Cisco IOS 12.3XW
• Cisco IOS 12.3XX
• Cisco IOS 12.3XY
• Cisco IOS 12.3YA
• Cisco IOS 12.3YB
• Cisco IOS 12.3YD
• Cisco IOS 12.3YG
• Cisco IOS 12.3YH
• Cisco IOS 12.3YI
• Cisco IOS 12.3YJ
• Cisco IOS 12.3YK
• Cisco IOS 12.3YQ
• Cisco IOS 12.3YS
• Cisco IOS 12.3YT
• Cisco IOS 12.3YU
• Cisco IOS 12.4MR
• Cisco IOS 12.4T

Reported:

Jul 27, 2005

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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