fkie_cve-2025-54581
Vulnerability from fkie_nvd
Published
2025-07-30 20:15
Modified
2025-07-31 18:42
Severity ?
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 |
|---|
{
"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."
}
],
"id": "CVE-2025-54581",
"lastModified": "2025-07-31T18:42:37.870",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"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"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2025-07-30T20:15:37.907",
"references": [
{
"source": "security-advisories@github.com",
"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"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-369"
}
],
"source": "security-advisories@github.com",
"type": "Primary"
}
]
}
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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.
- 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.
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