CVE-2025-53634

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/ctfer-io/chall-manager/commit/1385bd869142651146cd0b123085f91cec698636	Patch
https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4	Release Notes
https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-ggmv-j932-q89q	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ctfer-io:chall-manager:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-07-10 20:15

Updated : 2025-08-14 20:41

NVD link : CVE-2025-53634

Mitre link : CVE-2025-53634

CVE.ORG link : CVE-2025-53634

JSON object : View

Products Affected

ctfer-io

chall-manager

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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