Executive Summary

Informations
Name CVE-2020-28896 First vendor Publication 2020-11-23
Vendor Cve Last vendor Modification 2021-07-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 3.6 Temporal Score 5.3
Exploitabality Sub Score 1.6
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:N/C:P/I:N/A:N)
Cvss Base Score 2.6 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity High
Cvss Expoit Score 4.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28896

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-755 Improper Handling of Exceptional Conditions
50 % CWE-287 Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 45
Application 1
Os 1

Sources (Detail)

Source Url
GENTOO https://security.gentoo.org/glsa/202101-32
MISC https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112...
https://github.com/neomutt/neomutt/releases/tag/20201120
https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebb...
https://gitlab.com/muttmua/mutt/-/commit/d92689088dfe80a290ec836e292376e2d998...
MLIST https://lists.debian.org/debian-lts-announce/2020/11/msg00048.html

Alert History

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Date Informations
2021-08-05 01:38:40
  • Multiple Updates
2021-07-21 17:23:11
  • Multiple Updates
2021-05-04 13:53:05
  • Multiple Updates
2021-04-22 03:03:50
  • Multiple Updates
2021-01-28 17:22:53
  • Multiple Updates
2021-01-27 09:23:11
  • Multiple Updates
2020-12-15 00:22:52
  • Multiple Updates
2020-12-08 21:24:20
  • Multiple Updates
2020-12-01 05:22:51
  • Multiple Updates
2020-11-24 00:22:53
  • First insertion