CVE-2022-20950
CVSS V2 None
CVSS V3 Medium 5.3
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.
Overview
- CVE ID
- CVE-2022-20950
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-11-15T21:15:36
- Last Modified Date
- 2022-11-22T14:50:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:firepower_threat_defense:7.2.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:firepower_threat_defense:7.2.0.1:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- LOW
- Base Score
- 5.3
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-dos-A4cHeArC |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-20950 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20950 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-11-15 22:00:15 | Added to TrackCVE | |||
| 2022-12-07 17:48:21 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-07 17:48:21 | 2022-11-15T21:15Z | 2022-11-15T21:15:36 | CVE Published Date | updated |
| 2022-12-07 17:48:21 | 2022-11-22T14:50:46 | CVE Modified Date | updated | |
| 2022-12-07 17:48:21 | Analyzed | Vulnerability Status | updated | |
| 2022-12-07 17:48:23 | CPE Information | updated |