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Title: Cisco Multiple Devices Crafted IP Option Multiple Remote Code Execution Vulnerability

Severity: CRITICAL

Description:

Cisco IOS and Cisco IOS XR are network operating systems used in many Cisco routers and switches.

Multiple Cisco switches and routers running Cisco IOS and Cisco IOS XR are prone to multiple remote denial-of-service vulnerabilities. These issues occur because the devices fail to handle specially crafted Internet Control Message Protocol (ICMP) packets, Protocol Independent Multicast version 2 (PIMv2) packets, Pragmatic General Multicast (PGM) packets, or URL Rendezvous Directory (URD) packets. Specifically, these issues include:

- A remote code-execution vulnerability for Cisco routers and switches running Cisco IOS. The device fails to handle specially crafted network packets when addressed directly to the affected device.

- A remote code-execution vulnerability for Cisco routers and switches running Cisco IOS XR. Exploiting this issue may allow an attacker to cause the affected device to execute arbitrary code or to cause the 'ipv4_io process' to reload when handling specially crafted network packets.

An attacker can exploit these issues to execute arbitrary code within the context of the affected device. Failed exploit attempts will result in a denial of service.

These issues affect only devices that are configured to handle Internet Protocol version 4 (IPv4) packets. These issues do not affect devices that are configured to handle only Internet Protocol version 6 (IPV6) packets.

These issues are being tracked by Cisco Bug IDs CSCeh52410 and CSCec71950.

Affected Products:

• Cisco IOS
• Cisco IOS 12.0
• Cisco IOS 12.0.1
• Cisco IOS 12.0.19
• Cisco IOS 12.0.1W
• Cisco IOS 12.0.1XA3
• Cisco IOS 12.0.1XB
• Cisco IOS 12.0.1XE
• Cisco IOS 12.0.2
• Cisco IOS 12.0.2XC
• Cisco IOS 12.0.2XD
• Cisco IOS 12.0.2XF
• Cisco IOS 12.0.2XG
• Cisco IOS 12.0.3
• Cisco IOS 12.0.3T2
• Cisco IOS 12.0.4
• Cisco IOS 12.0.4S
• Cisco IOS 12.0.4T
• Cisco IOS 12.0.5
• Cisco IOS 12.0.6
• Cisco IOS 12.0.7
• Cisco IOS 12.0DA
• Cisco IOS 12.0DB
• Cisco IOS 12.0DC
• Cisco IOS 12.0EV
• Cisco IOS 12.0S
• Cisco IOS 12.0SC
• Cisco IOS 12.0SL
• Cisco IOS 12.0SP
• Cisco IOS 12.0ST
• Cisco IOS 12.0SV
• Cisco IOS 12.0SX
• Cisco IOS 12.0SY
• Cisco IOS 12.0SZ
• Cisco IOS 12.0SZ
• Cisco IOS 12.0T
• Cisco IOS 12.0T
• Cisco IOS 12.0W5
• Cisco IOS 12.0WC
• Cisco IOS 12.0WC
• Cisco IOS 12.0WC
• Cisco IOS 12.0WT
• Cisco IOS 12.0WX
• Cisco IOS 12.0XA
• Cisco IOS 12.0XB
• Cisco IOS 12.0XC
• Cisco IOS 12.0XD
• Cisco IOS 12.0XE
• Cisco IOS 12.0XF
• Cisco IOS 12.0XG
• Cisco IOS 12.0XH
• Cisco IOS 12.0XI
• Cisco IOS 12.0XJ
• Cisco IOS 12.0XK
• Cisco IOS 12.0XL
• Cisco IOS 12.0XM
• Cisco IOS 12.0XN
• Cisco IOS 12.0XP
• Cisco IOS 12.0XQ
• Cisco IOS 12.0XR
• Cisco IOS 12.0XS
• Cisco IOS 12.0XT
• Cisco IOS 12.0XU
• Cisco IOS 12.0XV
• Cisco IOS 12.0XW
• Cisco IOS 12.10S
• Cisco IOS 12.1AA
• Cisco IOS 12.1AX
• Cisco IOS 12.1AX
• Cisco IOS 12.1AY
• Cisco IOS 12.1AY
• Cisco IOS 12.1AZ
• Cisco IOS 12.1CX
• Cisco IOS 12.1DA
• Cisco IOS 12.1DB
• Cisco IOS 12.1DC
• Cisco IOS 12.1E
• Cisco IOS 12.1EA
• Cisco IOS 12.1EB
• Cisco IOS 12.1EB
• Cisco IOS 12.1EC
• Cisco IOS 12.1EO
• Cisco IOS 12.1EU
• Cisco IOS 12.1EV
• Cisco IOS 12.1EW
• Cisco IOS 12.1EX
• Cisco IOS 12.1EY
• Cisco IOS 12.1EZ
• Cisco IOS 12.1GA
• Cisco IOS 12.1GB
• Cisco IOS 12.1M
• Cisco IOS 12.1SEC
• Cisco IOS 12.1T
• Cisco IOS 12.1T
• Cisco IOS 12.1X(l)
• Cisco IOS 12.1XA
• Cisco IOS 12.1XB
• Cisco IOS 12.1XC
• Cisco IOS 12.1XD
• Cisco IOS 12.1XE
• Cisco IOS 12.1XF
• Cisco IOS 12.1XG
• Cisco IOS 12.1XH
• Cisco IOS 12.1XI
• Cisco IOS 12.1XJ
• Cisco IOS 12.1XK
• Cisco IOS 12.1XL
• Cisco IOS 12.1XM
• Cisco IOS 12.1XP
• Cisco IOS 12.1XQ
• Cisco IOS 12.1XR
• Cisco IOS 12.1XS
• Cisco IOS 12.1XT
• Cisco IOS 12.1XU
• Cisco IOS 12.1XV
• Cisco IOS 12.1XW
• Cisco IOS 12.1XX
• Cisco IOS 12.1XY
• Cisco IOS 12.1XZ
• Cisco IOS 12.1YA
• 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 12.1YJ
• Cisco IOS 12.2
• Cisco IOS 12.2.0 12.2XU
• Cisco IOS 12.2B
• Cisco IOS 12.2BC
• Cisco IOS 12.2BW
• Cisco IOS 12.2BW
• Cisco IOS 12.2BX
• Cisco IOS 12.2BY
• Cisco IOS 12.2BZ
• Cisco IOS 12.2CX
• Cisco IOS 12.2CX
• Cisco IOS 12.2CX
• Cisco IOS 12.2CY
• Cisco IOS 12.2CY
• Cisco IOS 12.2CZ
• Cisco IOS 12.2DA
• Cisco IOS 12.2DD
• Cisco IOS 12.2DX
• 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 12.2FX
• Cisco IOS 12.2FY
• Cisco IOS 12.2IXA
• Cisco IOS 12.2JA
• Cisco IOS 12.2JA
• Cisco IOS 12.2JA
• Cisco IOS 12.2JK
• Cisco IOS 12.2MB
• Cisco IOS 12.2MC
• Cisco IOS 12.2MC
• Cisco IOS 12.2MX
• Cisco IOS 12.2MX
• Cisco IOS 12.2PB
• Cisco IOS 12.2PI
• Cisco IOS 12.2S
• Cisco IOS 12.2SA
• Cisco IOS 12.2SB
• Cisco IOS 12.2SBC
• Cisco IOS 12.2SE
• Cisco IOS 12.2SEA
• Cisco IOS 12.2SEB
• Cisco IOS 12.2SEC
• Cisco IOS 12.2SED
• Cisco IOS 12.2SED
• Cisco IOS 12.2SEE
• Cisco IOS 12.2SEE
• Cisco IOS 12.2SEF
• Cisco IOS 12.2SEF
• Cisco IOS 12.2SEG
• Cisco IOS 12.2SG
• Cisco IOS 12.2SGA
• Cisco IOS 12.2SGB
• Cisco IOS 12.2SH
• Cisco IOS 12.2SO
• Cisco IOS 12.2SRA
• Cisco IOS 12.2SRB
• 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 12.2SXE
• Cisco IOS 12.2SXF
• Cisco IOS 12.2SY
• Cisco IOS 12.2SY
• Cisco IOS 12.2SZ
• Cisco IOS 12.2SZ
• Cisco IOS 12.2T
• Cisco IOS 12.2TPC
• Cisco IOS 12.2XA
• Cisco IOS 12.2XB
• Cisco IOS 12.2XB15
• 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 12.2XJ
• Cisco IOS 12.2XK
• Cisco IOS 12.2XK
• Cisco IOS 12.2XK
• Cisco IOS 12.2XL
• Cisco IOS 12.2XM
• Cisco IOS 12.2XN
• Cisco IOS 12.2XQ
• Cisco IOS 12.2XQ
• Cisco IOS 12.2XR
• Cisco IOS 12.2XS
• Cisco IOS 12.2XT
• Cisco IOS 12.2XU
• Cisco IOS 12.2XV
• 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 12.2YK
• Cisco IOS 12.2YL
• Cisco IOS 12.2YL
• Cisco IOS 12.2YM
• Cisco IOS 12.2YM
• Cisco IOS 12.2YN
• Cisco IOS 12.2YN
• Cisco IOS 12.2YO
• Cisco IOS 12.2YO
• Cisco IOS 12.2YP
• Cisco IOS 12.2YP
• Cisco IOS 12.2YQ
• Cisco IOS 12.2YQ
• Cisco IOS 12.2YR
• Cisco IOS 12.2YR
• Cisco IOS 12.2YS
• Cisco IOS 12.2YS
• Cisco IOS 12.2YS
• Cisco IOS 12.2YT
• Cisco IOS 12.2YT
• Cisco IOS 12.2YU
• Cisco IOS 12.2YU
• Cisco IOS 12.2YV
• Cisco IOS 12.2YV
• Cisco IOS 12.2YW
• Cisco IOS 12.2YW
• Cisco IOS 12.2YW
• Cisco IOS 12.2YX
• Cisco IOS 12.2YX
• Cisco IOS 12.2YY
• Cisco IOS 12.2YY
• Cisco IOS 12.2YZ
• Cisco IOS 12.2YZ
• Cisco IOS 12.2ZA
• Cisco IOS 12.2ZA
• Cisco IOS 12.2ZB
• Cisco IOS 12.2ZB
• Cisco IOS 12.2ZC
• Cisco IOS 12.2ZC
• Cisco IOS 12.2ZD
• Cisco IOS 12.2ZD
• Cisco IOS 12.2ZE
• Cisco IOS 12.2ZE
• Cisco IOS 12.2ZF
• Cisco IOS 12.2ZF
• Cisco IOS 12.2ZG
• Cisco IOS 12.2ZG
• Cisco IOS 12.2ZH
• Cisco IOS 12.2ZH
• Cisco IOS 12.2ZI
• Cisco IOS 12.2ZJ
• Cisco IOS 12.2ZJ
• Cisco IOS 12.2ZJ
• Cisco IOS 12.2ZK
• Cisco IOS 12.2ZL
• Cisco IOS 12.2ZL
• Cisco IOS 12.2ZN
• Cisco IOS 12.2ZO
• Cisco IOS 12.2ZP
• Cisco IOS 12.2ZQ
• Cisco IOS 12.3
• Cisco IOS 12.3
• Cisco IOS 12.3(10)
• Cisco IOS 12.3(10c)
• Cisco IOS 12.3(10d)
• Cisco IOS 12.3(10e)
• Cisco IOS 12.3(11)
• Cisco IOS 12.3(11)T
• Cisco IOS 12.3(11)T4
• Cisco IOS 12.3(11)T5
• Cisco IOS 12.3(11)T6
• Cisco IOS 12.3(11)T8
• Cisco IOS 12.3(11)XL
• Cisco IOS 12.3(11)XL3
• Cisco IOS 12.3(11)YF
• Cisco IOS 12.3(11)YF2
• Cisco IOS 12.3(11)YF3
• Cisco IOS 12.3(11)YF4
• Cisco IOS 12.3(11)YJ
• Cisco IOS 12.3(11)YJ
• Cisco IOS 12.3(11)YK
• Cisco IOS 12.3(11)YK1
• Cisco IOS 12.3(11)YK2
• Cisco IOS 12.3(11)YL
• Cisco IOS 12.3(11)YN
• Cisco IOS 12.3(11)YR
• Cisco IOS 12.3(11)YS
• Cisco IOS 12.3(11)YS1
• Cisco IOS 12.3(11)YW
• Cisco IOS 12.3(12)
• Cisco IOS 12.3(12b)
• Cisco IOS 12.3(12e)
• Cisco IOS 12.3(13)
• Cisco IOS 12.3(13a)
• Cisco IOS 12.3(13a)BC
• Cisco IOS 12.3(13a)BC
• Cisco IOS 12.3(13a)BC1
• Cisco IOS 12.3(13b)
• Cisco IOS 12.3(14)T
• Cisco IOS 12.3(14)T2
• Cisco IOS 12.3(14)T4
• Cisco IOS 12.3(14)T5
• Cisco IOS 12.3(14)T7
• Cisco IOS 12.3(14)T7
• Cisco IOS 12.3(14)T8
• Cisco IOS 12.3(14)YG5
• Cisco IOS 12.3(14)YM4
• Cisco IOS 12.3(14)YM8
• Cisco IOS 12.3(14)YQ
• Cisco IOS 12.3(14)YQ1
• Cisco IOS 12.3(14)YQ3
• Cisco IOS 12.3(14)YQ4
• Cisco IOS 12.3(14)YQ8
• Cisco IOS 12.3(14)YT
• Cisco IOS 12.3(14)YT1
• Cisco IOS 12.3(14)YU
• Cisco IOS 12.3(14)YU1
• Cisco IOS 12.3(14)YX
• Cisco IOS 12.3(15)
• Cisco IOS 12.3(15b)
• Cisco IOS 12.3(16)
• Cisco IOS 12.3(1a)
• Cisco IOS 12.3(2)JA
• Cisco IOS 12.3(2)JA5
• Cisco IOS 12.3(2)JK
• Cisco IOS 12.3(2)JK1
• Cisco IOS 12.3(2)T3
• Cisco IOS 12.3(2)T8
• Cisco IOS 12.3(2)XA4
• Cisco IOS 12.3(2)XA5
• Cisco IOS 12.3(2)XC1
• Cisco IOS 12.3(2)XC2
• Cisco IOS 12.3(2)XC3
• Cisco IOS 12.3(2)XC3
• Cisco IOS 12.3(2)XC4
• Cisco IOS 12.3(2)XE3
• Cisco IOS 12.3(2)XE4
• Cisco IOS 12.3(3e)
• Cisco IOS 12.3(3h)
• Cisco IOS 12.3(3i)
• Cisco IOS 12.3(4)EO1
• Cisco IOS 12.3(4)JA
• Cisco IOS 12.3(4)JA
• Cisco IOS 12.3(4)JA1
• Cisco IOS 12.3(4)T
• Cisco IOS 12.3(4)T
• Cisco IOS 12.3(4)T1
• Cisco IOS 12.3(4)T1
• Cisco IOS 12.3(4)T13
• Cisco IOS 12.3(4)T2
• Cisco IOS 12.3(4)T3
• Cisco IOS 12.3(4)T4
• Cisco IOS 12.3(4)T8
• Cisco IOS 12.3(4)TPC11a
• Cisco IOS 12.3(4)XD
• Cisco IOS 12.3(4)XD1
• Cisco IOS 12.3(4)XD2
• Cisco IOS 12.3(4)XE4
• Cisco IOS 12.3(4)XG1
• Cisco IOS 12.3(4)XG2
• Cisco IOS 12.3(4)XG4
• Cisco IOS 12.3(4)XG5
• Cisco IOS 12.3(4)XH
• Cisco IOS 12.3(5)
• Cisco IOS 12.3(8)JA
• Cisco IOS 12.3(8)JA1
• Cisco IOS 12.3(8)JK
• Cisco IOS 12.3B
• Cisco IOS 12.3BC
• Cisco IOS 12.3BW
• Cisco IOS 12.3JA
• Cisco IOS 12.3JEA
• Cisco IOS 12.3JEB
• Cisco IOS 12.3JK
• Cisco IOS 12.3JL
• Cisco IOS 12.3JX
• Cisco IOS 12.3T
• Cisco IOS 12.3TPC
• 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 12.3XN
• Cisco IOS 12.3XQ
• Cisco IOS 12.3XR
• Cisco IOS 12.3XS
• Cisco IOS 12.3XT
• Cisco IOS 12.3XU
• Cisco IOS 12.3XV
• Cisco IOS 12.3XW
• Cisco IOS 12.3XX
• Cisco IOS 12.3XY
• Cisco IOS 12.3XZ
• Cisco IOS 12.3YA
• Cisco IOS 12.3YB
• Cisco IOS 12.3YC
• Cisco IOS 12.3YD
• Cisco IOS 12.3YE
• Cisco IOS 12.3YF
• Cisco IOS 12.3YG
• Cisco IOS 12.3YH
• Cisco IOS 12.3YI
• Cisco IOS 12.3YJ
• Cisco IOS 12.3YK
• Cisco IOS 12.3YL
• Cisco IOS 12.3YM
• Cisco IOS 12.3YN
• Cisco IOS 12.3YQ
• Cisco IOS 12.3YR
• Cisco IOS 12.3YS
• Cisco IOS 12.3YT
• Cisco IOS 12.3YU
• Cisco IOS 12.3YW
• Cisco IOS 12.3YX
• Cisco IOS 12.3YZ
• Cisco IOS 12.4
• Cisco IOS 12.4
• Cisco IOS 12.4(1)
• Cisco IOS 12.4(1)
• Cisco IOS 12.4(1b)
• Cisco IOS 12.4(1c)
• Cisco IOS 12.4(2)MR
• Cisco IOS 12.4(2)MR1
• Cisco IOS 12.4(2)T
• Cisco IOS 12.4(2)T1
• Cisco IOS 12.4(2)T2
• Cisco IOS 12.4(2)T3
• Cisco IOS 12.4(2)T4
• Cisco IOS 12.4(2)T4
• Cisco IOS 12.4(2)XA
• Cisco IOS 12.4(2)XB
• Cisco IOS 12.4(2)XB2
• Cisco IOS 12.4(3)
• Cisco IOS 12.4(3)
• Cisco IOS 12.4(3)T2
• Cisco IOS 12.4(3a)
• Cisco IOS 12.4(3b)
• Cisco IOS 12.4(3d)
• Cisco IOS 12.4(3d)
• Cisco IOS 12.4(4)MR
• Cisco IOS 12.4(4)MR
• Cisco IOS 12.4(4)T
• Cisco IOS 12.4(4)T2
• Cisco IOS 12.4(4)T2
• Cisco IOS 12.4(5)
• Cisco IOS 12.4(5b)
• Cisco IOS 12.4(6)T
• Cisco IOS 12.4(6)T1
• Cisco IOS 12.4(7)
• Cisco IOS 12.4(7a)
• Cisco IOS 12.4(8)
• Cisco IOS 12.4(9)T
• Cisco IOS 12.4MR
• Cisco IOS 12.4SW
• Cisco IOS 12.4T
• Cisco IOS 12.4XA
• Cisco IOS 12.4XB
• Cisco IOS 12.4XC
• Cisco IOS 12.4XD
• Cisco IOS 12.4XE
• Cisco IOS 12.4XG
• Cisco IOS 12.4XJ
• Cisco IOS 12.4XP
• Cisco IOS 12.4XT
• Cisco IOS XR
• Cisco IOS XR 2.0.0
• Cisco IOS XR 3.0.1
• Cisco IOS XR 3.1.0 .0
• Cisco IOS XR 3.2.0
• Cisco IOS XR 3.2.1
• Cisco IOS XR 3.2.2
• Cisco IOS XR 3.2.3
• Cisco IOS XR 3.2.4
• Cisco IOS XR 3.2.50
• Cisco IOS XR 3.3.0

References:

• Cisco: Cisco Applied Intelligence Response: Identifying and Mitigating Exploitation of
• Cisco: Cisco Security Advisory: Crafted IP Option Vulnerability
• Cisco Systems: Cisco IOS Homepage
• Phenoelit: Release of the slides from the 25C3 presentation on Cisco IOS forensics and expl
• US-CERT: Vulnerability Note VU#341288 - Cisco IOS fails to properly prcoess certain packe

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