CVE-2023-20270 — Improper Input Validation in Cisco Firepower Threat Defense Software

CWE-20 — Improper Input Validation4 documents4 sources
Severity
5.8MEDIUMNVD
EPSS
0.0%
top 97.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Firepower Threat Defense SoftwareCisco Firepower Threat Defense
Timeline
PublishedNov 1

Description

A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:LExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶NVDcisco/firepower_threat_defense12 versions+11

🔴Vulnerability Details

2
CVEList
CVE-2023-20270: A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower T↗2023-11-01
▶
GHSA
GHSA-x6h4-hr96-7xf2: A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower T↗2023-11-01
▶

📋Vendor Advisories

1
Cisco
Cisco Firepower Threat Defense Software SMB Protocol Snort 3 Detection Engine Bypass and Denial of Service Vulnerability↗2023-11-01
▶
CVE-2023-20270 — Improper Input Validation in Cisco | cvebase