CVE-2023-25581

EIP tracks 1 public exploit for CVE-2023-25581. PoCs published by p33d.

AI-analyzed exploit summary This repository contains a functional Python exploit for CVE-2023-25581, leveraging unsafe deserialization in pac4j-core to achieve remote code execution (RCE) via a crafted Base64-encoded payload. The exploit sends a malicious serialized object to a vulnerable endpoint, triggering arbitrary command execution.

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.