Cisco Unified IP Phone ICMP denial of service

cisco-unifiedipphone-icmp-dos (40487) The risk level is classified as LowLow Risk

Description:

Cisco Unified IP Phones running SCCP firmware are vulnerable to a denial of service. By sending a large ICMP echo request packet, a remote attacker could reboot the phone.

Platforms Affected:

  • Cisco, Unified IP Phone 7940
  • Cisco, Unified IP Phone 7940G
  • Cisco, Unified IP Phone 7960
  • Cisco, Unified IP Phone 7960G

Remedy:

Refer to cisco-sa-20080213-phone for patch, upgrade or suggested workaround information. See References.

Consequences:

Denial of Service

References:

  • cisco-sa-20080213-phone, Cisco Security Advisory: Cisco Unified IP Phone Overflow and Denial of Service Vulnerabilities at http://www.cisco.com/warp/public/707/cisco-sa-20080213-phone.shtml.
  • BID-27774: Cisco Unified IP Phone SCCP and SIP Protocol Multiple Remote Vulnerabilities
  • CVE-2008-0526: Cisco Unified IP Phone 7940, 7940G, 7960, and 7960G running SCCP firmware allows remote attackers to cause a denial of service (reboot) via a long ICMP echo request (ping) packet.
  • FrSIRT/ADV-2008-0543: Cisco Unified IP Phones Overflow and Denial of Service Vulnerabilities
  • SA28935: Cisco Unified IP Phone Multiple Vulnerabilities
  • SECTRACK ID: 1019407: Cisco Unified IP Phone Can Be Crashed By Remote Users Sending an ICMP Echo Request Packet

Reported:

Feb 13, 2008

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