An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles     certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a     good.example.com\x00evil.example.com attack. (CVE-2020-7043)

Note that Nessus relies on the presence of the package as reported by the vendor.

This update for openfortivpn to version 1.12.0 fixes the following issues :

  - CVE-2020-7043: Fixed a TLS Certificate CommonName NULL     Byte Vulnerability (boo#1165301).

  - CVE-2020-7042: Fixed use of uninitialized memory in     X509_check_host (boo#1165300).

  - CVE-2020-7041: Fixed incorrect use of X509_check_host     (boo#1165299).

Update to latest upstream version to fix CVE-2020-7041, CVE-2020-7042 and CVE-2020-7043.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
255641	Linux Distros Unpatched Vulnerability : CVE-2020-7043	Nessus	Misc.	critical
134282	openSUSE Security Update : openfortivpn (openSUSE-2020-301)	Nessus	SuSE Local Security Checks	critical
134254	Fedora 31 : openfortivpn (2020-c96ab3c813)	Nessus	Fedora Local Security Checks	critical
134251	Fedora 30 : openfortivpn (2020-42eb8821db)	Nessus	Fedora Local Security Checks	critical

Detections

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CVE-2020-7043

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Tenable Plugins

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