VULNERABILITY INTELLIGENCE
CVE-2021-44273
CVSS score7.4 HIGH
EPSS probability1.00%
CISA KEVNot currently listed
Published2021-12-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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.
Weakness classification
- nvd@nist.gov: CWE-295
Primary references
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Exploit, Issue Tracking, Patch, Third Party Advisory
- cve@mitre.org
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108