FKIE_CVE-2015-2741
Vulnerability from fkie_nvd - Published: 2015-07-06 02:01 - Updated: 2026-06-17 00:24
Severity
Summary
Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 do not enforce key pinning upon encountering an X.509 certificate problem that generates a user dialog, which allows user-assisted man-in-the-middle attackers to bypass intended access restrictions by triggering a (1) expired certificate or (2) mismatched hostname for a domain with pinning enabled.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| oracle | solaris | 11.3 | |
| mozilla | firefox | 31.0 | |
| mozilla | firefox | 31.1.0 | |
| mozilla | firefox | 31.1.1 | |
| mozilla | firefox | 31.3.0 | |
| mozilla | firefox | 31.5.1 | |
| mozilla | firefox | 31.5.2 | |
| mozilla | firefox | 31.5.3 | |
| mozilla | firefox | 38.0 | |
| mozilla | firefox_esr | 31.1 | |
| mozilla | firefox_esr | 31.2 | |
| mozilla | firefox_esr | 31.3 | |
| mozilla | firefox_esr | 31.4 | |
| mozilla | firefox_esr | 31.5 | |
| mozilla | firefox_esr | 31.6.0 | |
| mozilla | firefox_esr | 31.7.0 |
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 do not enforce key pinning upon encountering an X.509 certificate problem that generates a user dialog, which allows user-assisted man-in-the-middle attackers to bypass intended access restrictions by triggering a (1) expired certificate or (2) mismatched hostname for a domain with pinning enabled."
},
{
"lang": "es",
"value": "Mozilla Firefox anterior a 39.0, Firefox ESR 38.x anterior a 38.1, y Thunderbird anterior a 38.1 no refuerzan la fijaci\u00f3n (pinning) de las claves cuando encuentre un problema con los certificados X.509 que genere un dialogo de usuario, lo que permite a atacantes man-in-the-middle asistidos por usuario evadir las restricciones de acceso mediante la provocaci\u00f3n de (1) un certificado caducado o (2) un nombre de anfitri\u00f3n malasociado para un dominio con la fijaci\u00f3n (pinning) habilitado."
}
],
"id": "CVE-2015-2741",
"lastModified": "2026-06-17T00:24:39.990",
"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": true
}
]
},
"published": "2015-07-06T02:01:09.517",
"references": [
{
"source": "security@mozilla.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html"
},
{
"source": "security@mozilla.org",
"url": "http://rhn.redhat.com/errata/RHSA-2015-1207.html"
},
{
"source": "security@mozilla.org",
"url": "http://rhn.redhat.com/errata/RHSA-2015-1455.html"
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"source": "security@mozilla.org",
"tags": [
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},
{
"source": "security@mozilla.org",
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"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
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"url": "http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html"
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{
"source": "security@mozilla.org",
"url": "http://www.securityfocus.com/bid/75541"
},
{
"source": "security@mozilla.org",
"url": "http://www.securitytracker.com/id/1032783"
},
{
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"url": "http://www.securitytracker.com/id/1032784"
},
{
"source": "security@mozilla.org",
"url": "http://www.ubuntu.com/usn/USN-2656-1"
},
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"url": "http://www.ubuntu.com/usn/USN-2656-2"
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"url": "https://security.gentoo.org/glsa/201512-10"
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"vulnStatus": "Modified",
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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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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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