Check Point ZoneAlarm Symlink Following Privilege Escalation Vulnerability
Vulnerability Details
This vulnerability allows local attackers to escalate privileges on affected installations of Check Point ZoneAlarm. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the ZoneAlarm Service. The issue results from the lack of proper validation of a user-supplied symbolic link prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.
Additional Details
Check Point has issued an update to correct this vulnerability. More details can be found at:
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk142952
Disclosure Timeline
- 2020-02-05 - Vulnerability reported to vendor
- 2020-07-02 - Coordinated public release of advisory
Credit
Glenn Lloyd
