ctfer-io chall-manager up to 0.1.3 Scenario Decoding path traversal

Summaryinfo

A vulnerability categorized as critical has been discovered in ctfer-io chall-manager up to 0.1.3. The affected element is an unknown function of the component Scenario Decoding. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2025-53632. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in ctfer-io chall-manager up to 0.1.3 and classified as critical. Affected by this issue is an unknown functionality of the component Scenario Decoding. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. CVE summarizes:

Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. When decoding a scenario (i.e. a zip archive), the path of the file to write is not checked, potentially leading to zip slips. Exploitation does not require authentication nor authorization, so anyone can exploit it. It should nonetheless not be exploitable as it is highly recommended to bury Chall-Manager deep within the infrastructure due to its large capabilities, so no users could reach the system. Patch has been implemented by commit 47d188f and shipped in v0.1.4.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-53632 since 07/07/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 0.1.4 eliminates this vulnerability.

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Productinfo

Vendor

• ctfer-io

Name

• chall-manager

Version

• 0.1.0
• 0.1.1
• 0.1.2
• 0.1.3

Website

• Product: https://github.com/ctfer-io/chall-manager/

CPE 2.3info

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CPE 2.2info

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