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CVE-2021-44273

HIGH

7.4

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.

CVE Details

CVSS v3.1 Score7.4

SeverityHIGH

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published12/23/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

e2bn:e2guardian

Weaknesses (CWE)

CWE-295

References

http://www.openwall.com/lists/oss-security/2021/12/23/2(cve@mitre.org)

https://github.com/e2guardian/e2guardian/commit/eae46a7e2a57103aadca903c4a24cca94dc502a2(cve@mitre.org)

https://github.com/e2guardian/e2guardian/issues/707(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2023/09/msg00010.html(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2021/12/23/2(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/e2guardian/e2guardian/commit/eae46a7e2a57103aadca903c4a24cca94dc502a2(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/e2guardian/e2guardian/issues/707(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2023/09/msg00010.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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