CVE-2021-1258 Cisco AnyConnect Secure Mobility Client Arbitrary File Read Vulnerability
A local attacker with low privileges can read arbitrary files on the underlying OS via the upgrade component of Cisco AnyConnect Secure Mobility Client.
- 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-2021-1258?
CVE-2021-1258 is a medium-severity path traversal vulnerability in Cisco Anyconnect Secure Mobility Client, published on 13 Jan 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 upgrade component of Cisco AnyConnect Secure Mobility Client could allow an authenticated, local attacker with low privileges to read arbitrary files on the underlying operating system (OS) of an affected device. The vulnerability is due to insufficient file permission restrictions. An attacker could exploit this vulnerability by sending a crafted command from the local CLI to the application. A successful exploit could allow the attacker to read arbitrary files on the underlying OS of the affected device. The attacker would need to have valid user credentials to exploit this vulnerability.
Which versions are affected by CVE-2021-1258?
It affects 2 products.
Products include Cisco Anyconnect Secure Mobility Client, Mcafee Agent Epolicy Orchestrator Extension.
How do I fix CVE-2021-1258?
No fix has been published for CVE-2021-1258 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-1258 being exploited?
There is no known exploitation of CVE-2021-1258 in the wild and no public exploit code.
Other vulnerabilities in Cisco Anyconnect Secure Mobility Client
Sources
Also known as GHSA-8f4f-mpwv-cr26.