Security restrictions bypass in Microsoft Edge - CVE-2017-11874

 

Security restrictions bypass in Microsoft Edge - CVE-2017-11874

Published: November 14, 2017


Vulnerability identifier: #VU9284
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-11874
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to how memory is accessed in code compiled by the Edge Just-In-Time (JIT) compiler. A remote attacker can browse to a malicious website, bypass Control Flow Guard (CFG) and perform further attacks.


Affected software

Microsoft Edge
ChakraCore

How to mitigate CVE-2017-11874

Install updates from vendor's website.


External References

Related Security Bulletins