Security restrictions bypass in Mozilla Firefox - CVE-2017-7835

 

Security restrictions bypass in Mozilla Firefox - CVE-2017-7835

Published: November 15, 2017


Vulnerability identifier: #VU9322
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-7835
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

Mixed content blocking of insecure (HTTP) sub-resources in a secure (HTTPS) document was not correctly applied for resources that redirect from HTTPS to HTTP, allowing content that should be blocked, such as scripts, to be loaded on a page.


Affected software

Mozilla Firefox
Arch Linux
Ubuntu

How to mitigate CVE-2017-7835

Update to version Firefox 57.


External References

Related Security Bulletins