Critical severity · published Feb 27, 2020
CVE-2020-7043
An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2
9.1
CVSS
2.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BS
Backports Sle · Opensuse
15.0 · source: NVD
FE
Fedora · Fedoraproject
30; 31; 32 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
OP
Openfortivpn · Openfortivpn Project
before 1.12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7043
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7043
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html
Patch
https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8
Patch
https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4
Issue Tracking
https://github.com/adrienverge/openfortivpn/issues/536
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/
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