Improper Certificate Validation in LibreSSL - CVE-2017-8301
Published: August 3, 2020
Vulnerability identifier: #VU32983
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-8301
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LibreSSL
LibreSSL
Software vendor:
OpenBSD
OpenBSD
Description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to improper TLS certificate validation in the SSL_get_verify_result() function in LibreSSL. A remote attacker can bypass certificate validation process and perform MitM attack.
Remediation
Install updates from vendor's website.