CVE-2021-26911

Severity Score

7.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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

El archivo core/imap/MCIMAPSession.cpp en Canary Mail versiones anteriores a 3.22, tiene una Falta de Comprobación de Certificado SSL para IMAP en modo STARTTLS

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-02-08 CVE Reserved
2021-02-17 CVE Published
2024-01-10 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (6)

URL	Tag	Source
https://apps.apple.com/us/app/canary-mail/id1236045954	Product
https://census-labs.com/news/category/advisories	Third Party Advisory

URL	Date	SRC
https://census-labs.com/news/2021/02/17/canary-mail-app-missing-certificate-validation-check-on-imap-starttls	2024-08-03

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2021/02/17/3	2021-02-24
https://github.com/canarymail/mailcore2/commit/45acb4efbcaa57a20ac5127dc976538671fce018	2021-02-24
https://www.openwall.com/lists/oss-security/2021/02/17/3	2021-02-24

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canarymail Search vendor "Canarymail"		Canary Mail Search vendor "Canarymail" for product "Canary Mail"				3.20 Search vendor "Canarymail" for product "Canary Mail" and version "3.20"		iphone_os		Affected
Canarymail Search vendor "Canarymail"		Canary Mail Search vendor "Canarymail" for product "Canary Mail"				3.21 Search vendor "Canarymail" for product "Canary Mail" and version "3.21"		iphone_os		Affected
Libmailcore Search vendor "Libmailcore"		Mailcore2 Search vendor "Libmailcore" for product "Mailcore2"				0.6.4 Search vendor "Libmailcore" for product "Mailcore2" and version "0.6.4"		-		Affected