CVE-2012-0021 (GCVE-0-2012-0021)
Vulnerability from cvelistv5 – Published: 2012-01-28 02:00 – Updated: 2024-08-06 18:09
VLAI?
Summary
The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
31 references
Date Public ?
2011-11-28 00:00
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2012-0021\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2012-01-28T04:05:00.750\",\"lastModified\":\"2026-04-29T01:13:23.040\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n log_cookie en mod_log_config.c en el m\u00f3dulo de mod_log_config en Apache HTTP Server v2.2.17 a v2.2.21, cuando se usa MPM multihilo , no controla correctamente una cadena de formato %{}C , lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda del demonio) a trav\u00e9s de una cookie que carece de un nombre y un valor.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:H/Au:N/C:N/I:N/A:P\",\"baseScore\":2.6,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":4.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.2.17:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A71F4154-AD20-4EEA-9E2E-D3385C357DA5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.2.18:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B0B8C9DB-401E-42B3-BAED-D09A96DE9A90\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.2.19:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"062C20A0-05A0-4164-8330-DF6ADFE607F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.2.20:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D345BA35-93BB-406F-B5DC-86E49FB29C22\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.2.21:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7ED4892F-C829-4BEA-AB82-6A78F6F2426D\"}]}]}],\"references\":[{\"url\":\"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://httpd.apache.org/security/vulnerabilities_22.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor 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}
}
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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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