PT-2020-13169 · Freron · Mailmate

Published 2020-08-20 · Updated 2021-07-21 · CVE-2020-12619

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MailMate versions prior to 1.11

Description The issue allows a man-in-the-middle attacker to obtain an email-validated S/MIME certificate from a trusted CA and replace the public key of the entity to be impersonated, enabling the attacker to decipher further communication. This can be accomplished by sending a single email.

Recommendations For MailMate versions prior to 1.11, update to version 1.11 or later to resolve the issue. As a temporary workaround, consider disabling the automatic import of S/MIME certificates until a patch is available. Restrict access to sensitive email communications to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2020-12619

Affected Products

Mailmate

References · 4

• https://osv.dev/vulnerability/CVE-2020-12619 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-12619 · Security Note
• https://updates.mailmate-app.com/2.0/release_notes · Vendor Advisory
• https://nds.ruhr-uni-bochum.de/media/nds/veroeffentlichungen/2020/08/15/mailto-paper.pdf · Note