ISS X-Force Database: cisco-ios-mvpm-information-disclosure(41468): Cisco IOS Multicast Virtual Private Network (MVPN) information disclosure

Cisco IOS Multicast Virtual Private Network (MVPN) information disclosure

cisco-ios-mvpm-information-disclosure (41468)

Low Risk

Description:

Cisco IOS could allow a remote attacker to obtain sensitive information, caused by an error when Multicast Virtual Private Network (MVPN) is enabled. By sending a specially-crafted Multicast Distribution Tree (MDT) Data Join message, a remote attacker could cause VPNs that are not connected to the same edge router as the attacker to leak multicast traffic when the BGP peer IP address and the multicast group address of other MPLS VPNs are known.

Platforms Affected:

Cisco, IOS 12.0S
Cisco, IOS 12.0SX
Cisco, IOS 12.0SY
Cisco, IOS 12.0SZ
Cisco, IOS 12.2B
Cisco, IOS 12.2BC
Cisco, IOS 12.2BZ
Cisco, IOS 12.2CX
Cisco, IOS 12.2CZ
Cisco, IOS 12.2EU
Cisco, IOS 12.2EW
Cisco, IOS 12.2EZ
Cisco, IOS 12.2FZ
Cisco, IOS 12.2IXA
Cisco, IOS 12.2IXB
Cisco, IOS 12.2IXC
Cisco, IOS 12.2SBC
Cisco, IOS 12.2SEA
Cisco, IOS 12.2SEB
Cisco, IOS 12.2SEC
Cisco, IOS 12.2SED
Cisco, IOS 12.2SO
Cisco, IOS 12.2SU
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 12.2UZ
Cisco, IOS 12.2YH
Cisco, IOS 12.2YJ
Cisco, IOS 12.2YL
Cisco, IOS 12.2YM
Cisco, IOS 12.2YN
Cisco, IOS 12.2YQ
Cisco, IOS 12.2YR
Cisco, IOS 12.2YT
Cisco, IOS 12.2YU
Cisco, IOS 12.2YV
Cisco, IOS 12.2YX
Cisco, IOS 12.2YZ
Cisco, IOS 12.2ZA
Cisco, IOS 12.2ZC
Cisco, IOS 12.2ZD
Cisco, IOS 12.2ZE
Cisco, IOS 12.2ZF
Cisco, IOS 12.2ZG
Cisco, IOS 12.2ZJ
Cisco, IOS 12.2ZL
Cisco, IOS 12.2ZP
Cisco, IOS 12.2ZU
Cisco, IOS 12.3B
Cisco, IOS 12.3BW
Cisco, IOS 12.3T
Cisco, IOS 12.3VA
Cisco, IOS 12.3XB
Cisco, IOS 12.3XD
Cisco, IOS 12.3XF
Cisco, IOS 12.3XG
Cisco, IOS 12.3XH
Cisco, IOS 12.3XJ
Cisco, IOS 12.3XK
Cisco, IOS 12.3XQ
Cisco, IOS 12.3XS
Cisco, IOS 12.3XU
Cisco, IOS 12.3XW
Cisco, IOS 12.3XY
Cisco, IOS 12.3YA
Cisco, IOS 12.3YD
Cisco, IOS 12.3YF
Cisco, IOS 12.3YH
Cisco, IOS 12.3YI
Cisco, IOS 12.3YJ
Cisco, IOS 12.3YQ
Cisco, IOS 12.3YT
Cisco, IOS 12.3YU
Cisco, IOS 12.4XA
Cisco, IOS 12.4XF
Cisco, IOS 12.4XK

Remedy:

Refer to cisco-sa-20080326-mvpn for patch, upgrade or suggested workaround information. See References.

Consequences:

Obtain Information

References:

cisco-sa-20080326-mvpn, Cisco Security Advisory: Cisco IOS Multicast Virtual Private Network (MVPN) Data Leak at http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml.
BID-28464: Cisco IOS Multicast Virtual Private Network MDT Data Join Handling Vulnerability
CVE-2008-1156: 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.
FrSIRT/ADV-2008-1006: Cisco IOS Denial of Service and Information Disclosure Vulnerabilities
SA29507: Cisco IOS Multiple Vulnerabilities
SECTRACK ID: 1019715: Cisco IOS Multicast Virtual Private Network (MVPN) Data Leak Lets Remote Users Obtain VPN Traffic

Reported:

Mar 26, 2008

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