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CVE-2022-20950

Published: Nov 10, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-770
NVD MITRE
5.8CVSSMEDIUM
EPSS Score
0.8%
Top 48.7%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

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 trigger a restart of the Snort 3 process, resulting in a denial of service (DoS) condition.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-770CWE-754

Affected Products

firepower threat defenseciscoNetworking Infrastructure
SnortCisco Systems Inc.Networking Infrastructure
Firepower Threat DefenseCisco Systems Inc.Networking Infrastructure
Cisco Firepower Threat Defense SoftwareCiscoNetworking Infrastructure
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Attack Graph

Products CVE Techniques Tactics

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Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-dos-A4cHeArC
sec.cloudapps.cisco.com
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-dos-A4cHeArC
tools.cisco.com
https://nvd.nist.gov/vuln/detail/CVE-2022-20950
nvd.nist.gov

Timeline

Published
Nov 10, 2022
Last Updated
Nov 21, 2024

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