Vulnerability identifier: #VU27530
Vulnerability risk: High
Exploitation vector: Network
Exploit availability: Yes
The vulnerability allows a remote attacker to bypass sandbox restrictions.
The vulnerability exists due the Firefox content processes did not sufficiently lockdown access control due to improper protection of access tokens. A remote attacker can bypass implemented security restrictions and execute arbitrary code on the target system.
Note, this vulnerability affects Windows versions only.
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 60.0 - 75.0
Firefox ESR: 68.0 - 68.7.0, 60.0 - 60.9.0
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.