CVE-2018-5135

WebExtensions can bypass normal restrictions in some circumstances and use "browser.tabs.executeScript" to inject scripts into contexts where this should not be allowed, such as pages from other WebExtensions or unprivileged "about:" pages. This vulnerability affects Firefox < 59.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
http://www.securityfocus.com/bid/103386	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040514	Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1431371	Permissions Required
https://usn.ubuntu.com/3596-1/	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-06/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-06-11 21:29

Updated : 2019-10-03 00:03

NVD link : CVE-2018-5135

Mitre link : CVE-2018-5135

CVE.ORG link : CVE-2018-5135

JSON object : View

Products Affected

mozilla

firefox

CWE

CWE-862

Missing Authorization

{"id": "CVE-2018-5135", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2018-06-11T21:29:14.327", "references": [{"url": "http://www.securityfocus.com/bid/103386", "tags": ["Third Party Advisory", "VDB Entry"], "source": "security@mozilla.org"}, {"url": "http://www.securitytracker.com/id/1040514", "tags": ["Third Party Advisory", "VDB Entry"], "source": "security@mozilla.org"}, {"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1431371", "tags": ["Permissions Required"], "source": "security@mozilla.org"}, {"url": "https://usn.ubuntu.com/3596-1/", "tags": ["Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2018-06/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "WebExtensions can bypass normal restrictions in some circumstances and use \"browser.tabs.executeScript\" to inject scripts into contexts where this should not be allowed, such as pages from other WebExtensions or unprivileged \"about:\" pages. This vulnerability affects Firefox < 59."}, {"lang": "es", "value": "WebExtensions puede omitir las restricciones normales en algunas circunstancias y utilizar \"browser.tabs.executeScript\" para inyectar secuencias de comandos en contextos en los que esto no deber\u00eda permitirse, como p\u00e1ginas de otros WebExtensions o p\u00e1ginas \"about:\" no privilegiadas. Esta vulnerabilidad afecta a las versiones anteriores a la 59 de Firefox."}], "lastModified": "2019-10-03T00:03:26.223", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5DF580C0-6851-4C48-AA04-CD1B92A1FEB6", "versionEndExcluding": "59.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}