Vulnerability Bulletins

Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability


System information

   
Affected software Cisco

Description

A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart. This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to

More info:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-dos-A4cHeArC?vs_f=Cisco%20Security%20Advisory&vs_cat=Security%20Intelligence&vs_type=RSS&vs_p=Cisco%20Firepower%20Threat%20Defense%20Software%20SIP%20and%20Snort%203%20Detection%20Engine%20Denial%20of%20Service%20Vulnerability&vs_k=1

Standar resources

Property Value
CVE CVE-2022-20950.

Version history

Version Comments Date
1.0 Advisory issued 2022-12-25
Ministerio de Defensa
CNI
CCN
CCN-CERT