CVE-2020-7043 Information
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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
Reference
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8 https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 https://github.com/adrienverge/openfortivpn/issues/536 https://lists.fedoraproject.org/archives/list/[email protected]/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/ https://lists.fedoraproject.org/archives/list/[email protected]/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/ https://lists.fedoraproject.org/archives/list/[email protected]/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
NONE
Base Severity
9.1