CVE-2020-7043

CRITICAL

openfortivpn < 1.12.0 - Improper Certificate Validation via Hostname Comparison

Title source: llm

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.

References (8)

Core 8

Core References

Issue Tracking, Third Party Advisory x_refsource_misc

https://github.com/adrienverge/openfortivpn/issues/536

Patch, Third Party Advisory x_refsource_misc

https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4

View Patch ZIP pw:eip

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/

Patch, Third Party Advisory x_refsource_confirm

https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8

View Patch ZIP pw:eip

Scores

CVSS v3 9.1

EPSS 0.0240

EPSS Percentile 81.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Details

CWE

CWE-295

Status published

Products (6)

fedoraproject/fedora 30

fedoraproject/fedora 31

fedoraproject/fedora 32

openfortivpn_project/openfortivpn < 1.12.0

opensuse/backports_sle 15.0 sp1

opensuse/leap 15.1

Published Feb 27, 2020

Tracked Since Feb 18, 2026