CVE-2025-53634

HIGH

7.5

Description

Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. The HTTP Gateway processes headers, but with no timeout set. With a slow loris attack, an attacker could cause Denial of Service (DoS). 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 1385bd8 and shipped in v0.1.4.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published7/10/2025

Last Modified8/14/2025

Sourcenvd

Honeypot Sightings0

Affected Products

ctfer-io:chall-manager

Weaknesses (CWE)

CWE-770

References

https://github.com/ctfer-io/chall-manager/commit/1385bd869142651146cd0b123085f91cec698636(security-advisories@github.com)

https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4(security-advisories@github.com)

https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-ggmv-j932-q89q(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.