CVE-2012-5524 (GCVE-0-2012-5524)
Vulnerability from cvelistv5 – Published: 2014-02-08 00:00 – Updated: 2024-08-06 21:05
VLAI
EPSS
VEX
Summary
The _ssl_verify_callback function in tls_nb.py in Gajim before 0.15.3 does not properly verify SSL certificates, which allows remote attackers to conduct man-in-the-middle (MITM) attacks and spoof servers via an arbitrary certificate from a trusted CA.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| http://security.gentoo.org/glsa/glsa-201401-02.xml | vendor-advisoryx_refsource_GENTOO |
| https://trac.gajim.org/ticket/7252 | x_refsource_CONFIRM |
| http://www.openwall.com/lists/oss-security/2012/11/11/6 | mailing-listx_refsource_MLIST |
| https://trac.gajim.org/query?status=closed&group=… | x_refsource_CONFIRM |
Date Public
2012-11-11 00:00
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],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The _ssl_verify_callback function in tls_nb.py in Gajim before 0.15.3 does not properly verify SSL certificates, which allows remote attackers to conduct man-in-the-middle (MITM) attacks and spoof servers via an arbitrary certificate from a trusted CA."
},
{
"lang": "es",
"value": "La funci\u00f3n _ssl_verify_callback en tls_nb.py en Gajim anterior a 0.15.3 no verifica debidamente los certificados SSL, lo que permite a atacantes remotos llevar a cabo ataques de man-in-the-middle (MITM) y falsificar servidores a trav\u00e9s de un certificado arbitrario de una CA confiable."
}
],
"id": "CVE-2012-5524",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2014-02-08T00:55:05.910",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://security.gentoo.org/glsa/glsa-201401-02.xml"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2012/11/11/6"
},
{
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"url": "https://trac.gajim.org/query?status=closed\u0026group=resolution\u0026milestone=0.15.3"
},
{
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"tags": [
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],
"url": "https://trac.gajim.org/ticket/7252"
},
{
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"url": "http://security.gentoo.org/glsa/glsa-201401-02.xml"
},
{
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"url": "http://www.openwall.com/lists/oss-security/2012/11/11/6"
},
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"url": "https://trac.gajim.org/query?status=closed\u0026group=resolution\u0026milestone=0.15.3"
},
{
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"tags": [
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"Patch"
],
"url": "https://trac.gajim.org/ticket/7252"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-11-21T12:35:24+00:00",
"cve": "CVE-2012-5524",
"id": "CVE-2012-5524",
"initial_release_date": "2012-10-23T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "gajim: Improper handling of invalid certificates",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-5524.json",
"version": "3"
}
}
}
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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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