CVE-2025-53633

Summary

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.

Affected Software

Weaknesses

• CWE-405: CWE-405: Asymmetric Resource Consumption (Amplification)

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-r7fm-3pqm-ww5w
• https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd
• https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4

• ←Previous
• Next→