Title: Cisco IOS SIP Message Denial of Service Vulnerability
Severity: MODERATE
Description:
Cisco IOS is prone to a denial-of-service vulnerability when the Cisco Unified Border Element feature is enabled. This issue occurs when handling specially crafted SIP messages.
An attacker can exploit this issue by submitting specially crafted SIP messages via TCP port 5060 or 5061 or via UDP port 5060.
The attacker can exploit this issue to cause the affected device to crash and reload, denying service to legitimate users.
This issue is tracked by Cisco Bug ID CSCsx25880.
Affected Products:
- Cisco IOS 12.3YK
- Cisco IOS 12.3YS
- Cisco IOS 12.3YT
- Cisco IOS 12.4GC
- Cisco IOS 12.4MR
- 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 12.4XJ
- Cisco IOS 12.4XL
- Cisco IOS 12.4XM
- Cisco IOS 12.4XP
- Cisco IOS 12.4XT
- Cisco IOS 12.4XV
- Cisco IOS 12.4XW
- Cisco IOS 12.4XY
- Cisco IOS 12.4XZ
- Cisco IOS 12.4YA
- Cisco IOS 12.4YB
References:
- Cisco: Cisco Applied Mitigation Bulletin: Identifying and Mitigating Exploitation of th
- Cisco: Cisco Security Advisory: Cisco IOS Software Session Initiation Protocol Denial o
- Cisco Systems: Cisco IOS Homepage
Juniper Networks provides this content via a wide variety of sources and production methods. If notified of errors or omissions in the content of this page, Juniper Networks, at its discretion, will modify or remove the page or leave the content as is, depending on various factors including but not limited to the reputation and authority of the party providing the notification. Please use the contact information displayed elsewhere on this page to report any errors or omissions regarding the content on this page.
