CVE-2022-20950
published 2022-11-15CVE-2022-20950: A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to…
PriorityP428medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
0.79%
52.4th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_firepower_threat_defense_software | — | — |
| cisco | cisco_firepower_threat_defense_software | — | — |
| cisco | firepower_threat_defense | — | — |
| cisco | firepower_threat_defense | — | — |
| cisco | firepower_threat_defense | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
vendor_cisco5.8MEDIUM
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Cisco
Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability
vendor_cisco·2022-11-09·CVSS 5.8
CVE-2022-20950 [MEDIUM] CWE-770 Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability
Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability
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.
Cisco has released software updates that address this vulnerability. There are no workarounds that add
Cisco
Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2022-20950 Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability
CVE-2022-20950: Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability
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. Cisco has released software updates that address this vulnerability. There are no
CVSS:
GHSA
GHSA-6vj6-45jf-fr3w: A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacke
ghsa_unreviewed·2022-11-16
CVE-2022-20950 [MEDIUM] CWE-754 GHSA-6vj6-45jf-fr3w: A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacke
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-11-15
Published