CVE-2018-0227 — Improper Certificate Validation in Cisco Adaptive Security Appliance Software

CWE-295 — Improper Certificate Validation4 documents4 sources
Severity
7.5HIGHNVD
EPSS
1.1%
top 22.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Adaptive Security Appliance SoftwareCisco Firepower Threat Defense
Timeline
PublishedApr 19
Latest updateMay 13

Description

A vulnerability in the Secure Sockets Layer (SSL) Virtual Private Network (VPN) Client Certificate Authentication feature for Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to establish an SSL VPN connection and bypass certain SSL certificate verification steps. The vulnerability is due to incorrect verification of the SSL Client Certificate. An attacker could exploit this vulnerability by connecting to the ASA VPN without a proper private key and certifi…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDcisco/firepower_threat_defense6.0 — 6.0.1.4+1

🔴Vulnerability Details

2
GHSA
GHSA-25vq-3gfh-mvj7: A vulnerability in the Secure Sockets Layer (SSL) Virtual Private Network (VPN) Client Certificate Authentication feature for Cisco Adaptive Security↗2022-05-13
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CVEList
CVE-2018-0227: A vulnerability in the Secure Sockets Layer (SSL) Virtual Private Network (VPN) Client Certificate Authentication feature for Cisco Adaptive Security↗2018-04-19
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📋Vendor Advisories

1
Cisco
Cisco Adaptive Security Appliance Virtual Private Network SSL Client Certificate Bypass Vulnerability↗2018-04-18
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CVE-2018-0227 — Improper Certificate Validation | cvebase