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jruby-openssl gem for JRuby fails to do proper certificate validation

High severity GitHub Reviewed Published Jan 19, 2023 to the GitHub Advisory Database • Updated Dec 14, 2023

Package

bundler jruby-openssl (RubyGems)

Affected versions

< 0.6

Patched versions

0.6

Description

A security problem involving peer certificate verification was found where failed verification silently did nothing, making affected applications vulnerable to attackers. Attackers could lead a client application to believe that a secure connection to a rogue SSL server is legitimate. Attackers could also penetrate client-validated SSL server applications with a dummy certificate.

References

Published to the GitHub Advisory Database Jan 19, 2023
Reviewed Jan 19, 2023
Published by the National Vulnerability Database Dec 12, 2023
Last updated Dec 14, 2023

Severity

High

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
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
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:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.158%
(53rd percentile)

Weaknesses

CVE ID

CVE-2009-4123

GHSA ID

GHSA-xgv7-pqqh-h2w9

Source code

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