CVE-2025-54581 (GCVE-0-2025-54581)
Vulnerability from cvelistv5
Published
2025-07-30 19:57
Modified
2025-07-30 20:23
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Summary
vproxy is an HTTP/HTTPS/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as 'configuredUser-ttl-0'), the modulo operation 'timestamp % ttl' will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0.
References
Impacted products
Vendor Product Version
0x676e67 vproxy Version: < 2.4.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-54581",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-30T20:13:38.841221Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-30T20:23:36.826Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "vproxy",
          "vendor": "0x676e67",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.4.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "vproxy is an HTTP/HTTPS/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as \u0027configuredUser-ttl-0\u0027), the modulo operation \u0027timestamp % ttl\u0027 will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-369",
              "description": "CWE-369: Divide By Zero",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-30T19:57:46.454Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c"
        },
        {
          "name": "https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079"
        },
        {
          "name": "https://github.com/0x676e67/vproxy/releases/tag/v2.4.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/0x676e67/vproxy/releases/tag/v2.4.0"
        }
      ],
      "source": {
        "advisory": "GHSA-7h24-c332-p48c",
        "discovery": "UNKNOWN"
      },
      "title": "vproxy is vulnerable to a divide by zero DoS attack"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-54581",
    "datePublished": "2025-07-30T19:57:46.454Z",
    "dateReserved": "2025-07-25T16:19:16.093Z",
    "dateUpdated": "2025-07-30T20:23:36.826Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-54581\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-07-30T20:15:37.907\",\"lastModified\":\"2025-07-31T18:42:37.870\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"vproxy is an HTTP/HTTPS/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as \u0027configuredUser-ttl-0\u0027), the modulo operation \u0027timestamp % ttl\u0027 will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0.\"},{\"lang\":\"es\",\"value\":\"vproxy es un servidor proxy HTTP/HTTPS/SOCKS5. En las versiones 2.3.3 y anteriores, los datos no confiables se extraen del encabezado HTTP Proxy-Authorization, controlado por el usuario, se pasan a Extension::try_from y fluyen a parse_ttl_extension, donde se analizan como un valor TTL. Si un atacante proporciona un valor TTL de cero (por ejemplo, usando un nombre de usuario como \u0027configuredUser-ttl-0\u0027), la operaci\u00f3n de m\u00f3dulo \u0027timestamp % ttl\u0027 provocar\u00e1 un p\u00e1nico por divisi\u00f3n por cero, lo que provocar\u00e1 el bloqueo del servidor y una denegaci\u00f3n de servicio. Esto se solucion\u00f3 en la versi\u00f3n 2.4.0.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-369\"}]}],\"references\":[{\"url\":\"https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/0x676e67/vproxy/releases/tag/v2.4.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c\",\"source\":\"security-advisories@github.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-54581\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-07-30T20:13:38.841221Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-07-30T20:14:08.155Z\"}}], \"cna\": {\"title\": \"vproxy is vulnerable to a divide by zero DoS attack\", \"source\": {\"advisory\": \"GHSA-7h24-c332-p48c\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"0x676e67\", \"product\": \"vproxy\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 2.4.0\"}]}], \"references\": [{\"url\": \"https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c\", \"name\": \"https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079\", \"name\": \"https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/0x676e67/vproxy/releases/tag/v2.4.0\", \"name\": \"https://github.com/0x676e67/vproxy/releases/tag/v2.4.0\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"vproxy is an HTTP/HTTPS/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as \u0027configuredUser-ttl-0\u0027), the modulo operation \u0027timestamp % ttl\u0027 will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-369\", \"description\": \"CWE-369: Divide By Zero\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-07-30T19:57:46.454Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-54581\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-30T20:23:36.826Z\", \"dateReserved\": \"2025-07-25T16:19:16.093Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-07-30T19:57:46.454Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.