CVE-2023-25581
Deserialization of untrusted data in InternalAttributeHandler in pac4j
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
pac4j is a security framework for Java. `pac4j-core` prior to version 4.0.0 is affected by a Java deserialization vulnerability. The vulnerability affects systems that store externally controlled values in attributes of the `UserProfile` class from pac4j-core. It can be exploited by providing an attribute that contains a serialized Java object with a special prefix `{#sb64}` and Base64 encoding. This issue may lead to Remote Code Execution (RCE) in the worst case. Although a `RestrictedObjectInputStream` is in place, that puts some restriction on what classes can be deserialized, it still allows a broad range of java packages and potentially exploitable with different gadget chains. pac4j versions 4.0.0 and greater are not affected by this issue. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2023-02-07 CVE Reserved
- 2024-10-10 CVE Published
- 2024-10-10 CVE Updated
- 2024-10-11 EPSS Updated
- 2024-10-16 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-502: Deserialization of Untrusted Data
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://github.com/frohoff/ysoserial | X_refsource_misc | |
| https://github.com/pac4j/pac4j/blob/5834aeb22ad3a4369dfa572be60d7b20f5784a8f/pac4j-core/src/main/java/org/pac4j/core/profile/InternalAttributeHandler.java#L95 | X_refsource_misc | |
| https://portswigger.net/web-security/deserialization | X_refsource_misc | |
| https://securitylab.github.com/advisories/GHSL-2022-085_pac4j | X_refsource_confirm |
| URL | Date | SRC |
|---|---|---|
| https://github.com/p33d/CVE-2023-25581 | 2024-10-16 |
| URL | Date | SRC |
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| URL | Date | SRC |
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