CVE-2020-28896

LOW

Description

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.

References

https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06

https://github.com/neomutt/neomutt/releases/tag/20201120

https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a

https://gitlab.com/muttmua/mutt/-/commit/d92689088dfe80a290ec836e292376e2d9984f8f

https://lists.debian.org/debian-lts-announce/2020/11/msg00048.html

https://security.gentoo.org/glsa/202101-32

Details

Source: MITRE

Published: 2020-11-23

Updated: 2021-01-28

Type: CWE-522

Risk Information

CVSS v2.0

Base Score: 2.6

Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 4.9

Severity: LOW

CVSS v3.0

Base Score: 5.3

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

Impact Score: 3.6

Exploitability Score: 1.6

Severity: MEDIUM

Tenable Plugins

View all (13 total)

IDNameProductFamilySeverity
148056EulerOS 2.0 SP5 : mutt (EulerOS-SA-2021-1690)NessusHuawei Local Security Checks
low
146703EulerOS 2.0 SP2 : mutt (EulerOS-SA-2021-1330)NessusHuawei Local Security Checks
medium
145489GLSA-202101-32 : Mutt, NeoMutt: Information disclosureNessusGentoo Local Security Checks
low
145134EulerOS 2.0 SP3 : mutt (EulerOS-SA-2021-1098)NessusHuawei Local Security Checks
low
143804SUSE SLES12 Security Update : mutt (SUSE-SU-2020:3632-1)NessusSuSE Local Security Checks
low
143769SUSE SLED15 / SLES15 Security Update : mutt (SUSE-SU-2020:3568-1)NessusSuSE Local Security Checks
low
143499openSUSE Security Update : mutt (openSUSE-2020-2128)NessusSuSE Local Security Checks
low
143463openSUSE Security Update : mutt (openSUSE-2020-2141)NessusSuSE Local Security Checks
low
143462openSUSE Security Update : neomutt (openSUSE-2020-2127)NessusSuSE Local Security Checks
medium
143392Debian DLA-2472-1 : mutt security updateNessusDebian Local Security Checks
low
143264Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : Mutt vulnerability (USN-4645-1)NessusUbuntu Local Security Checks
low
143256Slackware 14.0 / 14.1 / 14.2 / current : mutt (SSA:2020-329-01)NessusSlackware Local Security Checks
low
143172FreeBSD : mutt -- authentication credentials being sent over an unencrypted connection (dc132c91-2b71-11eb-8cfd-4437e6ad11c4)NessusFreeBSD Local Security Checks
low