CVE-2020-12105
MEDIUMOpenConnect < 8.08 - Man-in-the-Middle Attack via X509 Certificate Validation Bypass
Title source: llmDescription
OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_misc
https://gitlab.com/openconnect/openconnect/-/merge_requests/96
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00039.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202006-15
Scores
CVSS v3
5.9
EPSS
0.0017
EPSS Percentile
37.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-755
Status
published
Products (2)
infradead/openconnect
< 8.08
opensuse/leap
15.1
Published
Apr 23, 2020
Tracked Since
Feb 18, 2026