Undertow Cookie Parsing Vulnerability
CVE-2023-4639 Published on November 17, 2024

Undertow: cookie smuggling/spoofing
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.

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Vulnerability Analysis

CVE-2023-4639 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
NONE

Timeline

Reported to Red Hat.

Made public. 376 days later.

Weakness Type

What is a HTTP Request Smuggling Vulnerability?

When malformed or abnormal HTTP requests are interpreted by one or more entities in the data flow between the user and the web server, such as a proxy or firewall, they can be interpreted inconsistently, allowing the attacker to "smuggle" a request to one device without the other device being aware of it.

CVE-2023-4639 has been classified to as a HTTP Request Smuggling vulnerability or weakness.


Products Associated with CVE-2023-4639

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Red Hat Undertow
 

Affected Versions

Red Hat Migration Toolkit for Runtimes 1 on RHEL 8: Red Hat Migration Toolkit for Runtimes 1 on RHEL 8: Red Hat Migration Toolkit for Runtimes 1 on RHEL 8: Red Hat Migration Toolkit for Runtimes 1 on RHEL 8: Red Hat JBoss Enterprise Application Platform 7: Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8: Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9: Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7: Red Hat JBoss Enterprise Application Platform 8: Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8: Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9: Red Hat Migration Toolkit for Applications 6: Red Hat build of Apache Camel for Spring Boot 3: Red Hat build of Apicurio Registry: Red Hat build of Quarkus: Red Hat Data Grid 8: Red Hat Decision Manager 7: Red Hat Fuse 7: Red Hat Integration Camel K: Red Hat Integration Camel Quarkus: Red Hat Integration Change Data Capture: Red Hat JBoss Data Grid 7: Red Hat JBoss Enterprise Application Platform 6: Red Hat JBoss Fuse 6: Red Hat JBoss Fuse Service Works 6: Red Hat Process Automation 7: Red Hat Single Sign-On 7:

Exploit Probability

EPSS
1.01%
Percentile
76.93%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.