PT-2020-19353

CVE-2020-7043

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Published

2020-02-27

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Updated

2024-06-15

Description by

CVSS 3.1
9.1
Critical
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions openfortivpn version 1.11.0
Description An issue was discovered in openfortivpn when used with OpenSSL before 1.0.2, where the tunnel.c file mishandles certificate validation. This occurs because hostname comparisons do not consider '0' characters, making it vulnerable to attacks such as a good.example.comx00evil.example.com attack.
Recommendations For openfortivpn version 1.11.0, consider updating OpenSSL to version 1.0.2 or later to mitigate the risk of exploitation. As a temporary workaround, restrict the use of certificate validation in tunnel.c until a patch is available.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Related identifiers
OPENSUSE-SU-2020:0301-1
OPENSUSE-SU-2020_0301-1
OPENSUSE-SU-2020:0305-1
OPENSUSE-SU-2024:11118-1
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