CVE-2025-53633

CRITICAL

9.8

Description

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 size of the decoded content is not checked, potentially leading to zip bombs decompression. 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 14042aa and shipped in v0.1.4.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-405

References

https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd(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-r7fm-3pqm-ww5w(security-advisories@github.com)

IOC Correlations

No correlations recorded

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