CVE-2023-20256 — Authentication Bypass by Spoofing in Cisco Adaptive Security Appliance Software

CWE-290 — Authentication Bypass by Spoofing4 documents4 sources
Severity
5.8MEDIUMNVD
CNA5.0
EPSS
0.0%
top 91.56%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Cisco Adaptive Security Appliance SoftwareCisco Firepower Threat Defense SoftwareCisco Adaptive Security Appliance Software+1 more
Timeline
PublishedNov 1

Description

Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should be denied to flow through an affected device. These vulnerabilities are due to a logic error that could occur when the affected software constructs and applies per-user-override rules. An attacker could exploit th…

CVSS vector

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

Affected Packages4 packages

▶NVDcisco/firepower_threat_defense43 versions+42

🔴Vulnerability Details

2
GHSA
GHSA-qfvx-xc98-9qgh: Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD)↗2023-11-01
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CVEList
CVE-2023-20256: Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD)↗2023-11-01
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📋Vendor Advisories

1
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect Access Control List Bypass Vulnerabilities↗2023-11-01
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CVE-2023-20256 — Authentication Bypass by Spoofing | cvebase