Vulnerability Monitor

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CVE-2018-5116

WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin. Malicious extensions can inject frames from arbitrary origins into the loaded page and then interact with them, bypassing same-origin user expectations with this permission. This vulnerability affects Firefox < 58.

Published

2018-06-11T21:29:13.530

Last Modified

2024-11-21T04:08:08.513

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-346

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	≤ 57.0.4	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	17.10	Yes

References

http://www.securityfocus.com/bid/102786 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1040270 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=1396399 Issue Tracking, Permissions Required ([email protected])
https://usn.ubuntu.com/3544-1/ Third Party Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2018-02/ Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/102786 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1040270 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=1396399 Issue Tracking, Permissions Required (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3544-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2018-02/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)