CVE-2021-30359 Privilege escalation in Check Point Harmony Browse and SandBlast Agent for Browsers
Attackers can escalate privileges to admin by placing a malicious binary in the repair folder during installer repair, affecting Check Point browser agents.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-30359?
CVE-2021-30359 is a high-severity vulnerability in Check Point Harmony Browse and SandBlast Agent for Browsers, published on 22 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Harmony Browse and the SandBlast Agent for Browsers installers must have admin privileges to execute some steps during the installation. Because the MS Installer allows regular users to repair their installation, an attacker running an installer before 90.08.7405 can start the installation repair and place a specially crafted binary in the repair folder, which runs with the admin privileges.
Weakness: CWE-427
Which versions are affected by CVE-2021-30359?
It affects 2 products.
Products include Checkpoint Harmony Browse, Checkpoint Sandblast Agent for Browsers.
How do I fix CVE-2021-30359?
No fix has been published for CVE-2021-30359 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-30359 being exploited?
There is no known exploitation of CVE-2021-30359 in the wild and no public exploit code.
Sources
Also known as GHSA-5r3w-7crg-r9gw.