Cisco IOS Software Network Address Translation Vulnerability (cisco-sa-20120328-nat)
High Nessus Plugin ID 58569
SynopsisThe remote device is missing a vendor-supplied security patch.
DescriptionThe Cisco IOS Software Network Address Translation (NAT) feature contains a denial of service (DoS) vulnerability in the translation of Session Initiation Protocol (SIP) packets. The vulnerability is caused when packets in transit on the vulnerable device require translation on the SIP payload. Cisco has released free software updates that address this vulnerability. A workaround that mitigates the vulnerability is available.
SolutionApply the relevant patch referenced in Cisco Security Advisory cisco-sa-20120328-nat.