#VU9328 Referrer policy bypass in Mozilla Firefox - CVE-2017-7842

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Main Vulnerability Database Vulnerabilities #VU9328

#VU9328 Referrer policy bypass in Mozilla Firefox - CVE-2017-7842

Published: November 15, 2017


Vulnerability identifier: #VU9328
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7842
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Mozilla Firefox
Software vendor:
Mozilla

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

If a document’s Referrer Policy attribute is set to "no-referrer" sometimes two network requests are made for <link> elements instead of one. One of these requests includes the referrer instead of respecting the set policy to not include a referrer on requests.


Remediation

Update to version Firefox 57.

External links