CVE-2021-40124 Privilege escalation in Cisco AnyConnect Secure Mobility Client
Local authenticated attackers can escalate privileges to SYSTEM by configuring pre-logon scripts in the Network Access Manager module.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40124?
CVE-2021-40124 is a medium-severity vulnerability in Cisco Anyconnect Secure Mobility Client, published on 4 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the Network Access Manager (NAM) module of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to escalate privileges on an affected device. This vulnerability is due to incorrect privilege assignment to scripts executed before user logon. An attacker could exploit this vulnerability by configuring a script to be executed before logon. A successful exploit could allow the attacker to execute arbitrary code with SYSTEM privileges.
Which versions are affected by CVE-2021-40124?
It affects 1 product.
Products include Cisco Anyconnect Secure Mobility Client.
How do I fix CVE-2021-40124?
No fix has been published for CVE-2021-40124 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-40124 being exploited?
There is no known exploitation of CVE-2021-40124 in the wild and no public exploit code.
Other vulnerabilities in Cisco Anyconnect Secure Mobility Client
Sources
Also known as GHSA-x848-mf45-8cv4.