Executive Summary

Informations
Name CVE-2021-44273 First vendor Publication 2021-12-23
Vendor Cve Last vendor Modification 2023-09-13

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Overall CVSS Score 7.4
Base Score 7.4 Environmental Score 7.4
impact SubScore 5.2 Temporal Score 7.4
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N)
Cvss Base Score 5.8 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44273

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-295 Certificate Issues

Sources (Detail)

Source Url
MISC https://github.com/e2guardian/e2guardian/commit/eae46a7e2a57103aadca903c4a24c...
https://github.com/e2guardian/e2guardian/issues/707
MLIST http://www.openwall.com/lists/oss-security/2021/12/23/2
https://lists.debian.org/debian-lts-announce/2023/09/msg00010.html

Alert History

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Date Informations
2023-09-13 17:27:49
  • Multiple Updates
2022-01-11 21:23:03
  • Multiple Updates
2021-12-24 00:22:53
  • Multiple Updates
2021-12-23 21:22:53
  • Multiple Updates
2021-12-23 17:22:54
  • First insertion