Multiple Cisco products IOS FTP server file transfer denial of service

cisco-ios-ftpserver-dos (34196) The risk level is classified as LowLow Risk

Description:

Multiple Cisco devices running IOS are vulnerable to a denial of service attack, caused by a vulnerability in the IOS FTP server. A remote authenticated attacker could exploit this vulnerability when transferring files to cause the device to reload, resulting in a denial of service.

Platforms Affected:

  • Cisco, IOS 12.0
  • Cisco, IOS 12.0T
  • Cisco, IOS 12.0WC
  • Cisco, IOS 12.0XC
  • Cisco, IOS 12.0XK
  • Cisco, IOS 12.1
  • Cisco, IOS 12.1T
  • Cisco, IOS 12.1XM
  • Cisco, IOS 12.2
  • Cisco, IOS 12.2T
  • Cisco, IOS 12.2XA
  • Cisco, IOS 12.2XG
  • Cisco, IOS 12.2ZF
  • Cisco, IOS 12.2ZH
  • Cisco, IOS 12.2ZJ
  • Cisco, IOS 12.2ZL
  • Cisco, IOS 12.2ZN
  • Cisco, IOS 12.3
  • Cisco, IOS 12.3B
  • Cisco, IOS 12.3T
  • Cisco, IOS 12.3TPC
  • Cisco, IOS 12.3XA
  • 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 12.3XK
  • Cisco, IOS 12.3XQ
  • Cisco, IOS 12.3XR
  • Cisco, IOS 12.3XS
  • Cisco, IOS 12.3XX
  • Cisco, IOS 12.3YA
  • Cisco, IOS 12.3YD
  • Cisco, IOS 12.3YG
  • Cisco, IOS 12.3YH
  • Cisco, IOS 12.3YI
  • Cisco, IOS 12.3YK
  • Cisco, IOS 12.3YM
  • Cisco, IOS 12.3YS
  • Cisco, IOS 12.3YT
  • Cisco, IOS 12.3YZ
  • Cisco, IOS 12.4SW
  • Cisco, IOS 12.4T
  • Cisco, IOS 12.4XA
  • Cisco, IOS 12.4XC
  • Cisco, IOS 12.4XD
  • Cisco, IOS 12.4XE

Remedy:

Refer to cisco-sa-20070509-iosftp for patch, upgrade, or suggested workaround information. See References.

Consequences:

Denial of Service

References:

  • cisco-sa-20070509-iosftp, Cisco Security Advisory: Multiple Vulnerabilities in the IOS FTP Server at http://www.cisco.com/warp/public/707/cisco-sa-20070509-iosftp.shtml .
  • BID-23885: Cisco IOS FTP Server Multiple Vulnerabilities
  • CVE-2007-2587: 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).
  • OSVDB ID: 35335: Cisco IOS FTP Server Unspecified File Transfer DoS
  • SA25199: Cisco IOS FTP Server Multiple Vulnerabilities
  • SECTRACK ID: 1018030: Cisco IOS FTP Server Lets Remote Users Read and Write Files and Denial of Service
  • VUPEN/ADV-2007-1749: Cisco IOS FTP Server Feature Unauthorized Access and Denial of Service Vulnerabilities

Reported:

May 09, 2007

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