FKIE_CVE-2012-2311
Vulnerability from fkie_nvd - Published: 2012-05-11 10:15 - Updated: 2026-06-16 23:41
Severity
Summary
sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, when configured as a CGI script (aka php-cgi), does not properly handle query strings that contain a %3D sequence but no = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| php | php | * | |
| php | php | 1.0 | |
| php | php | 2.0 | |
| php | php | 2.0b10 | |
| php | php | 3.0 | |
| php | php | 3.0.1 | |
| php | php | 3.0.2 | |
| php | php | 3.0.3 | |
| php | php | 3.0.4 | |
| php | php | 3.0.5 | |
| php | php | 3.0.6 | |
| php | php | 3.0.7 | |
| php | php | 3.0.8 | |
| php | php | 3.0.9 | |
| php | php | 3.0.10 | |
| php | php | 3.0.11 | |
| php | php | 3.0.12 | |
| php | php | 3.0.13 | |
| php | php | 3.0.14 | |
| php | php | 3.0.15 | |
| php | php | 3.0.16 | |
| php | php | 3.0.17 | |
| php | php | 3.0.18 | |
| php | php | 4.0 | |
| php | php | 4.0 | |
| php | php | 4.0 | |
| php | php | 4.0 | |
| php | php | 4.0 | |
| php | php | 4.0.0 | |
| php | php | 4.0.1 | |
| php | php | 4.0.2 | |
| php | php | 4.0.3 | |
| php | php | 4.0.4 | |
| php | php | 4.0.5 | |
| php | php | 4.0.6 | |
| php | php | 4.0.7 | |
| php | php | 4.1.0 | |
| php | php | 4.1.1 | |
| php | php | 4.1.2 | |
| php | php | 4.2.0 | |
| php | php | 4.2.1 | |
| php | php | 4.2.2 | |
| php | php | 4.2.3 | |
| php | php | 4.3.0 | |
| php | php | 4.3.1 | |
| php | php | 4.3.2 | |
| php | php | 4.3.3 | |
| php | php | 4.3.4 | |
| php | php | 4.3.5 | |
| php | php | 4.3.6 | |
| php | php | 4.3.7 | |
| php | php | 4.3.8 | |
| php | php | 4.3.9 | |
| php | php | 4.3.10 | |
| php | php | 4.3.11 | |
| php | php | 4.4.0 | |
| php | php | 4.4.1 | |
| php | php | 4.4.2 | |
| php | php | 4.4.3 | |
| php | php | 4.4.4 | |
| php | php | 4.4.5 | |
| php | php | 4.4.6 | |
| php | php | 4.4.7 | |
| php | php | 4.4.8 | |
| php | php | 4.4.9 | |
| php | php | 5.0.0 | |
| php | php | 5.0.0 | |
| php | php | 5.0.0 | |
| php | php | 5.0.0 | |
| php | php | 5.0.0 | |
| php | php | 5.0.0 | |
| php | php | 5.0.0 | |
| php | php | 5.0.0 | |
| php | php | 5.0.1 | |
| php | php | 5.0.2 | |
| php | php | 5.0.3 | |
| php | php | 5.0.4 | |
| php | php | 5.0.5 | |
| php | php | 5.1.0 | |
| php | php | 5.1.1 | |
| php | php | 5.1.2 | |
| php | php | 5.1.3 | |
| php | php | 5.1.4 | |
| php | php | 5.1.5 | |
| php | php | 5.1.6 | |
| php | php | 5.2.0 | |
| php | php | 5.2.1 | |
| php | php | 5.2.2 | |
| php | php | 5.2.3 | |
| php | php | 5.2.4 | |
| php | php | 5.2.5 | |
| php | php | 5.2.6 | |
| php | php | 5.2.7 | |
| php | php | 5.2.8 | |
| php | php | 5.2.9 | |
| php | php | 5.2.10 | |
| php | php | 5.2.11 | |
| php | php | 5.2.12 | |
| php | php | 5.2.13 | |
| php | php | 5.2.14 | |
| php | php | 5.2.15 | |
| php | php | 5.2.16 | |
| php | php | 5.2.17 | |
| php | php | 5.3.0 | |
| php | php | 5.3.1 | |
| php | php | 5.3.2 | |
| php | php | 5.3.3 | |
| php | php | 5.3.4 | |
| php | php | 5.3.5 | |
| php | php | 5.3.6 | |
| php | php | 5.3.7 | |
| php | php | 5.3.8 | |
| php | php | 5.3.9 | |
| php | php | 5.3.10 | |
| php | php | 5.3.11 | |
| php | php | 5.4.0 | |
| php | php | 5.4.0 | |
| php | php | 5.4.1 | |
| php | php | 5.4.2 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
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"versionEndIncluding": "5.3.12",
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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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{
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"matchCriteriaId": "9EF4B938-BB14-4C06-BEE9-10CA755C5DEF",
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{
"criteria": "cpe:2.3:a:php:php:5.3.1:*:*:*:*:*:*:*",
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{
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{
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],
"negate": false,
"operator": "OR"
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]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, when configured as a CGI script (aka php-cgi), does not properly handle query strings that contain a %3D sequence but no = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the \u0027d\u0027 case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823."
},
{
"lang": "es",
"value": "sapi/cgi/cgi_main.c de PHP anteriores a 5.3.13 y 5.4.x anteriores a 5.4.3, si est\u00e1 configurado como un script CGI (php-cgi), no maneja apropiadamente cadenas de petici\u00f3n que contienen una secuencia %3D pero ning\u00fan = (signo igual). Lo que permite a atacantes remotos ejecutar c\u00f3digo arbitrario colocando opciones de comandos en la cadena de petici\u00f3n. Relacionado con la falta de supresi\u00f3n de un determinado php_getopt para el caso \u0027d\u0027. NOTA: esta vulnerabilidad se debe a una soluci\u00f3n incompleta de CVE-2012-1823."
}
],
"id": "CVE-2012-2311",
"lastModified": "2026-06-16T23:41:20.067",
"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": "2012-05-11T10:15:48.107",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html"
},
{
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"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html"
},
{
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},
{
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},
{
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"url": "http://marc.info/?l=bugtraq\u0026m=134012830914727\u0026w=2"
},
{
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"url": "http://secunia.com/advisories/49014"
},
{
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"url": "http://secunia.com/advisories/49085"
},
{
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"url": "http://support.apple.com/kb/HT5501"
},
{
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},
{
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"tags": [
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],
"url": "http://www.kb.cert.org/vuls/id/520827"
},
{
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"url": "http://www.php.net/ChangeLog-5.php#5.4.3"
},
{
"source": "secalert@redhat.com",
"url": "http://www.php.net/archive/2012.php#id2012-05-08-1"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securitytracker.com/id?1027022"
},
{
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"tags": [
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],
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},
{
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"url": "https://bugs.php.net/patch-display.php?bug_id=61910\u0026patch=cgi.diff-fix-check.patch\u0026revision=1336093719\u0026display=1"
},
{
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"url": "https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862"
},
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},
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},
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},
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"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html"
},
{
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"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html"
},
{
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"url": "http://marc.info/?l=bugtraq\u0026m=134012830914727\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/49014"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/49085"
},
{
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"url": "http://support.apple.com/kb/HT5501"
},
{
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},
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},
{
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"url": "http://www.securitytracker.com/id?1027022"
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"tags": [
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{
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},
{
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"url": "https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862"
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],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-89"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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