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CVE-2023-4639

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Date: August 30, 2023

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.

Language: Java

Severity Score

Related Resources (4)

https://bugzilla.redhat.com/show_bug.cgi?id=2166022
https://nvd.nist.gov/vuln/detail/CVE-2023-4639
https://github.com/undertow-io/undertow/commit/1f93a979d2ac264798e5779b5b7172dfafe0066f
https://www.mend.io/vulnerability-database/CVE-2023-4639

Severity Score

Top Fix

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Upgrade Version

Upgrade to version io.undertow:undertow-core:2.2.30.Final,2.3.11.Final, io.undertow:undertow-examples:2.2.30.Final,2.3.11.Final, io.undertow:undertow-benchmarks: 2.2.30.Final,2.3.11.Final

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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