SB2023110203 - Denial of service in Cisco Firepower Threat Defense (FTD)
Published: November 2, 2023
Security Bulletin ID
SB2023110203
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Business Logic Errors (CVE-ID: CVE-2023-20177)
CWE-ID: CWE-840 - Business Logic Errors (3.0)
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the a logic error when SSL/TLS connection is configured with a URL Category and the Snort 3 detection engine. A remote attacker can trigger an unexpected reload of the Snort 3 detection engine and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.