Security restrictions bypass in Mozilla Firefox - CVE-2018-12370

 

Security restrictions bypass in Mozilla Firefox - CVE-2018-12370

Published: June 27, 2018


Vulnerability identifier: #VU13492
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-2018-12370
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to in Reader View SameSite cookie protections are not checked on exiting. A remote attacker can trigger a payload when Reader View is exited if loaded by a malicious site while Reader mode is active, bypass CSRF protections and possibly conduct CSRF attack.

Affected software

Mozilla Firefox
Arch Linux
Gentoo Linux

How to mitigate CVE-2018-12370

Update to version 61.0.

Mozilla Firefox - update to 61.0

External References

Related Security Bulletins