FKIE_CVE-2011-2766
Vulnerability from fkie_nvd - Published: 2011-09-23 10:55 - Updated: 2025-04-11 00:51
Severity ?
Summary
The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by CGI::Fast, uses environment variable values from one request during processing of a later request, which allows remote attackers to bypass authentication via crafted HTTP headers.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| fast_cgi_project | fast_cgi | * | |
| debian | debian_linux | 5.0 | |
| debian | debian_linux | 6.0 | |
| debian | debian_linux | 7.0 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fast_cgi_project:fast_cgi:*:*:*:*:*:perl:*:*",
"matchCriteriaId": "16AEBF10-D97B-4BC0-AF31-892ECA37EB06",
"versionEndIncluding": "0.73",
"versionStartIncluding": "0.70",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*",
"matchCriteriaId": "8C757774-08E7-40AA-B532-6F705C8F7639",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*",
"matchCriteriaId": "036E8A89-7A16-411F-9D31-676313BB7244",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by CGI::Fast, uses environment variable values from one request during processing of a later request, which allows remote attackers to bypass authentication via crafted HTTP headers."
},
{
"lang": "es",
"value": "El m\u00f3dulo FCGI (tambi\u00e9n conocido como Fast CGI) v0.70 hasta v0.73 para Perl, como se usa en CGI::Fast, usa valores de variables de entorno para una peticni\u00f3n durante el procesado de una petici\u00f3n posterior, lo que permite a atacantes remotos eludir la autenticaci\u00f3n a trav\u00e9s de cabeceras HTTP modificadas."
}
],
"id": "CVE-2011-2766",
"lastModified": "2025-04-11T00:51:21.963",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2011-09-23T10:55:03.240",
"references": [
{
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"tags": [
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"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479"
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"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69709"
},
{
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"tags": [
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],
"url": "https://hermes.opensuse.org/messages/13154637"
},
{
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{
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{
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{
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},
{
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},
{
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},
{
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},
{
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{
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"tags": [
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],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69709"
},
{
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"tags": [
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{
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{
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"Third Party Advisory"
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"url": "https://rt.cpan.org/Public/Bug/Display.html?id=68380"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-287"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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