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Improper Neutralization of CRLF Sequences in Wildfly Undertow

Moderate severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

maven org.wildfly:wildfly-undertow (Maven)

Affected versions

>= 10.0.0.Final, <= 10.1.0.Final

Patched versions

11.0.0.Final

Description

CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

References

Published by the National Vulnerability Database Sep 26, 2016
Published to the GitHub Advisory Database May 17, 2022
Reviewed Jul 12, 2022
Last updated Jan 27, 2023

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
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
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:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.497%
(76th percentile)

Weaknesses

CVE ID

CVE-2016-4993

GHSA ID

GHSA-qcqr-hcjq-whfq

Source code

No known source code
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