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Undertow incorrectly parses cookies

High severity GitHub Reviewed Published Nov 17, 2024 to the GitHub Advisory Database • Updated Nov 18, 2024

Package

maven io.undertow:undertow-core (Maven)

Affected versions

>= 2.3.0.Alpha1, < 2.3.11.Final
< 2.2.30.Final

Patched versions

2.3.11.Final
2.2.30.Final

Description

A flaw was found in Undertow, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity.

References

Published by the National Vulnerability Database Nov 17, 2024
Published to the GitHub Advisory Database Nov 17, 2024
Reviewed Nov 18, 2024
Last updated Nov 18, 2024

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
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
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:H/I:H/A:N

EPSS score

0.098%
(42nd percentile)

Weaknesses

CVE ID

CVE-2023-4639

GHSA ID

GHSA-3jrv-jgp8-45v3

Source code

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