CVE-2021-44273

Description

e2guardian v5.4.x <= v5.4.3r is affected by missing SSL certificate validation in the SSL MITM engine. In standalone mode (i.e., acting as a proxy or a transparent proxy), with SSL MITM enabled, e2guardian, if built with OpenSSL v1.1.x, did not validate hostnames in certificates of the web servers that it connected to, and thus was itself vulnerable to MITM attacks.

References

https://lists.debian.org/debian-lts-announce/2023/09/msg00010.html

https://github.com/e2guardian/e2guardian/issues/707

https://github.com/e2guardian/e2guardian/commit/eae46a7e2a57103aadca903c4a24cca94dc502a2

http://www.openwall.com/lists/oss-security/2021/12/23/2

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3