Chall-Manager's HTTP Gateway have no header check timeout leading to potential slow loris attacks
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ctfer-io | chall-manager | affected |
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No data.
No data available yet.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-21052 | Chall-Manager's HTTP Gateway is vulnerable to DoS due to missing header timeout |
Github GHSA |
GHSA-ggmv-j932-q89q | Chall-Manager's HTTP Gateway is vulnerable to DoS due to missing header timeout |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.508% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Ctfer-io
Ctfer-io chall-manager |
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| CPEs | cpe:2.3:a:ctfer-io:chall-manager:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ctfer-io
Ctfer-io chall-manager |
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| Metrics |
cvssV3_1
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|---|---|---|
| Metrics |
epss
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epss
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| 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. | |
| Title | Chall-Manager's HTTP Gateway have no header check timeout leading to potential slow loris attacks | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV4_0
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