CVE-2025-53634 (GCVE-0-2025-53634)
Vulnerability from cvelistv5
Published
2025-07-10 19:39
Modified
2025-07-10 20:26
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
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.
Impacted products
Vendor Product Version
ctfer-io chall-manager Version: < 0.1.4
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-53634",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-10T20:26:52.981980Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-10T20:26:58.612Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "chall-manager",
          "vendor": "ctfer-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.1.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-10T19:39:57.816Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-ggmv-j932-q89q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-ggmv-j932-q89q"
        },
        {
          "name": "https://github.com/ctfer-io/chall-manager/commit/1385bd869142651146cd0b123085f91cec698636",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ctfer-io/chall-manager/commit/1385bd869142651146cd0b123085f91cec698636"
        },
        {
          "name": "https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4"
        }
      ],
      "source": {
        "advisory": "GHSA-ggmv-j932-q89q",
        "discovery": "UNKNOWN"
      },
      "title": "Chall-Manager\u0027s HTTP Gateway have no header check timeout leading to potential slow loris attacks"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-53634",
    "datePublished": "2025-07-10T19:39:57.816Z",
    "dateReserved": "2025-07-07T14:20:38.390Z",
    "dateUpdated": "2025-07-10T20:26:58.612Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-53634\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-07-10T20:26:52.981980Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-07-10T20:26:55.512Z\"}}], \"cna\": {\"title\": \"Chall-Manager\u0027s HTTP Gateway have no header check timeout leading to potential slow loris attacks\", \"source\": {\"advisory\": \"GHSA-ggmv-j932-q89q\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.7, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"ctfer-io\", \"product\": \"chall-manager\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 0.1.4\"}]}], \"references\": [{\"url\": \"https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-ggmv-j932-q89q\", \"name\": \"https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-ggmv-j932-q89q\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/ctfer-io/chall-manager/commit/1385bd869142651146cd0b123085f91cec698636\", \"name\": \"https://github.com/ctfer-io/chall-manager/commit/1385bd869142651146cd0b123085f91cec698636\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4\", \"name\": \"https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"CWE-770: Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-07-10T19:39:57.816Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-53634\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-10T20:26:58.612Z\", \"dateReserved\": \"2025-07-07T14:20:38.390Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-07-10T19:39:57.816Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…