CVE-2012-5642 (GCVE-0-2012-5642)
Vulnerability from cvelistv5 – Published: 2012-12-31 11:00 – Updated: 2024-08-06 21:14
VLAI
EPSS
VEX
Summary
server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2012/12/17/2 | mailing-listx_refsource_MLIST |
| https://github.com/fail2ban/fail2ban/commit/83109bc | x_refsource_CONFIRM |
| http://sourceforge.net/mailarchive/message.php?ms… | mailing-listx_refsource_MLIST |
| https://raw.github.com/fail2ban/fail2ban/master/C… | x_refsource_CONFIRM |
| https://bugs.gentoo.org/show_bug.cgi?id=447572 | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-updates/2013-0… | vendor-advisoryx_refsource_SUSE |
| https://bugzilla.redhat.com/show_bug.cgi?id=887914 | x_refsource_CONFIRM |
| http://www.mandriva.com/security/advisories?name=… | vendor-advisoryx_refsource_MANDRIVA |
| http://lists.opensuse.org/opensuse-updates/2013-0… | vendor-advisoryx_refsource_SUSE |
Date Public
2012-12-06 00:00
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"id": "CVE-2012-5642",
"lastModified": "2024-11-21T01:45:01.733",
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},
"nvd": "{\"cve\":{\"id\":\"CVE-2012-5642\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2012-12-31T11:50:27.890\",\"lastModified\":\"2026-04-29T01:13:23.040\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.\"},{\"lang\":\"es\",\"value\":\"server/action.py en Fail2ban antes de v0.8.8 no controla correctamente el contenido de las etiquetas \u0027matches\u0027, lo que podr\u00eda permitir a atacantes remotos provocar conductas inseguras en un archivo de acci\u00f3n personalizado a trav\u00e9s de s\u00edmbolos no especificados en este contenido.\\r\\n\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"0.8.7.1\",\"matchCriteriaId\":\"43813F24-CB93-46D7-8F91-6D436FB04564\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.1.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7750E527-5A05-4716-BF4A-B40EA9E34394\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.1.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA9C7EF4-DA9B-4ADF-A044-2AC8A2FC270F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.1.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0FCFD263-E347-43DD-80A6-D222FCEF23D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.3.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"64A0FEBA-647F-41F4-8590-7E8C7A49A36D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.3.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"40BBF7B9-57DB-4479-B2C3-8EB466185E94\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D7847766-CF03-4BF1-BE69-09C50AEC3DFC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.4.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E004A754-3CCB-409D-B13A-DF735ED63971\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.5.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"ADF9F5C0-7E85-40AC-A7AA-7442749E48D6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.5.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2331299E-1834-4853-B38B-9E24A364EC62\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.5.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AA9B27B6-418F-4101-A4A1-6E887BF0BB39\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.5.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2B6C2141-12A6-428A-9223-A0CA743BC020\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.5.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A0468228-10A0-4F72-BE85-D50ED3AA10B4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.5.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B73E5BBF-3755-4DC8-840F-2466BB2B280D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"880958EA-3BE3-4F16-B323-3CA878BEB3A6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.6.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB79FF61-80D6-4AB8-BC6F-6924AF9A0969\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"66BAD83B-AACD-4BCE-8900-8558C6F82D7C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"719BA249-7B47-488E-86BA-C08286FF8772\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A88DA08A-A1C6-4BC1-9BC1-BE823207BFA5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CD346590-84C5-473E-9672-2E920C71B7FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F288E708-A212-4007-A32A-3608C56C5F7B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CF7EEF2A-DC72-4F51-B168-237EFA637988\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D366BB8-A4FB-44CC-94BE-3C3BA3861C91\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"114BC59D-4035-4BC6-B697-9D10415CBDD9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.8:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CB94274B-C1AF-4F87-B244-7BA4526F5D1E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.7.9:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"98844A94-ABB6-41B4-A5B0-3101F54A3652\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3F522ECF-7F87-4A25-9CF3-0BCD99B4CAEB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AFEB99EB-DA51-48BB-96BD-4D47D8839C75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E29B3199-71BB-4EED-9D91-B6F941AD7BAC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BE8CF239-5E91-4708-B594-FA825C69DFE9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2DB5D2A5-78E3-49C0-9A8D-397B21E03E26\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FFFCA848-72E8-4E33-A636-3D9009AAF870\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A97A9988-C973-4ACF-BD37-570004F1AD38\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fail2ban:fail2ban:0.8.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF73708F-4237-47BA-83B8-5999EED0EC28\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-updates/2013-04/msg00001.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-updates/2013-04/msg00002.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://sourceforge.net/mailarchive/message.php?msg_id=30193056\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.mandriva.com/security/advisories?name=MDVSA-2013:078\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2012/12/17/2\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugs.gentoo.org/show_bug.cgi?id=447572\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=887914\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://github.com/fail2ban/fail2ban/commit/83109bc\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://raw.github.com/fail2ban/fail2ban/master/ChangeLog\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-updates/2013-04/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://lists.opensuse.org/opensuse-updates/2013-04/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://sourceforge.net/mailarchive/message.php?msg_id=30193056\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.mandriva.com/security/advisories?name=MDVSA-2013:078\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2012/12/17/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugs.gentoo.org/show_bug.cgi?id=447572\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=887914\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://github.com/fail2ban/fail2ban/commit/83109bc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://raw.github.com/fail2ban/fail2ban/master/ChangeLog\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
"redhat_vex": {
"current_release_date": "2025-11-21T12:48:05+00:00",
"cve": "CVE-2012-5642",
"id": "CVE-2012-5642",
"initial_release_date": "2012-10-08T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "fail2ban: does not escape the content of \u003cmatches\u003e",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-5642.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2026-05-06T01:55:28Z",
"cve": "CVE-2012-5642",
"id": "CVE-2012-5642",
"initial_release_date": "2023-02-15T05:43:28Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2012-5642",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2012-5642.json",
"version": "5"
}
}
}
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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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