Skip to content

Mercurial Improper Certificate Validation vulnerability

Moderate severity GitHub Reviewed Published Apr 21, 2022 to the GitHub Advisory Database • Updated May 2, 2024

Package

pip mercurial (pip)

Affected versions

< 1.6.4

Patched versions

1.6.4

Description

Mercurial before 1.6.4 fails to verify the Common Name field of SSL certificates which allows remote attackers who acquire a certificate signed by a Certificate Authority to perform a man-in-the-middle attack.

References

Published by the National Vulnerability Database Oct 29, 2019
Published to the GitHub Advisory Database Apr 21, 2022
Reviewed May 2, 2024
Last updated May 2, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.149%
(52nd percentile)

Weaknesses

CVE ID

CVE-2010-4237

GHSA ID

GHSA-7gf7-7wx4-mxmw

Source code

No known source code
Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.