fkie_cve-2017-7820
Vulnerability from fkie_nvd
Published
2018-06-11 21:29
Modified
2024-11-21 03:32
Severity ?
Summary
The "instanceof" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox < 56.
References
| ▶ | URL | Tags | |
|---|---|---|---|
| security@mozilla.org | http://www.securityfocus.com/bid/101057 | Third Party Advisory, VDB Entry | |
| security@mozilla.org | http://www.securitytracker.com/id/1039465 | Third Party Advisory, VDB Entry | |
| security@mozilla.org | https://bugzilla.mozilla.org/show_bug.cgi?id=1378207 | Exploit, Issue Tracking | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2017-21/ | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.securityfocus.com/bid/101057 | Third Party Advisory, VDB Entry | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.securitytracker.com/id/1039465 | Third Party Advisory, VDB Entry | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.mozilla.org/show_bug.cgi?id=1378207 | Exploit, Issue Tracking | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.mozilla.org/security/advisories/mfsa2017-21/ | Vendor Advisory |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FEC7D85F-EE10-4144-B49D-DC88DE61352E",
"versionEndIncluding": "55.0.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The \"instanceof\" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox \u003c 56."
},
{
"lang": "es",
"value": "El operador \"instanceof\" puede omitir el mecanismo del wrapper Xray. Cuando se le llama en un contenido web desde el propio navegador o una extensi\u00f3n, el contenido web puede proporcionar su propio resultado para ese operador, pudiendo enga\u00f1ar al navegador o extensi\u00f3n para que manipule err\u00f3neamente el elemento. Esta vulnerabilidad afecta a las versiones anteriores a la 56 de Firefox."
}
],
"id": "CVE-2017-7820",
"lastModified": "2024-11-21T03:32:44.003",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-06-11T21:29:10.873",
"references": [
{
"source": "security@mozilla.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/101057"
},
{
"source": "security@mozilla.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1039465"
},
{
"source": "security@mozilla.org",
"tags": [
"Exploit",
"Issue Tracking"
],
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1378207"
},
{
"source": "security@mozilla.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/101057"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1039465"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Issue Tracking"
],
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1378207"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"
}
],
"sourceIdentifier": "security@mozilla.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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