Input validation error in Cisco Firewall Threat Defense (FTD) - CVE-2023-20270

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Main Vulnerability Database Vulnerabilities #VU82677

Input validation error in Cisco Firewall Threat Defense (FTD) - CVE-2023-20270

Published: November 2, 2023


Vulnerability identifier: #VU82677
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-20270
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Firewall Threat Defense (FTD)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper error-checking in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

External links