CVE-2021-26911

Published: 17/02/2021 Updated: 24/02/2021

CVSS v2 Base Score: 5.8 | Impact Score: 4.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 7.4 | Impact Score: 5.2 | Exploitability Score: 2.2

VMScore: 516

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

core/imap/MCIMAPSession.cpp in Canary Mail prior to 3.22 has Missing SSL Certificate Validation for IMAP in STARTTLS mode.

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canarymail canary mail 3.20
canarymail canary mail 3.21
libmailcore mailcore2 0.6.4

Hello, Rayd Debbas of CENSUS identified that Canary Mail versions 320 and 321 (and possibly previous versions) do not perform a certificate validation check when configured for IMAP in STARTTLS mode This bug affects Canary Mail builds for Apple MacOS and iOS It is thus possible to carry out a man-in-the-middle attack in such scenarios, and vi ...

CWE-295 http://www.openwall.com/lists/oss-security/2021/02/17/3 https://apps.apple.com/us/app/canary-mail/id1236045954 https://census-labs.com/news/2021/02/17/canary-mail-app-missing-certificate-validation-check-on-imap-starttls/https://census-labs.com/news/category/advisories/https://github.com/canarymail/mailcore2/commit/45acb4efbcaa57a20ac5127dc976538671fce018 https://www.openwall.com/lists/oss-security/2021/02/17/3 https://nvd.nist.gov http://seclists.org/oss-sec/2021/q1/153

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CVE-2021-26911

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