CVE-2021-1240 Cisco Proximity Desktop for Windows DLL Hijacking Vulnerability
Local attackers can execute arbitrary code with elevated privileges by placing a malicious DLL in a specific directory, affecting Cisco Proximity Desktop users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-1240?
CVE-2021-1240 is a medium-severity vulnerability in Cisco Proximity, published on 13 Jan 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A vulnerability in the loading process of specific DLLs in Cisco Proximity Desktop for Windows could allow an authenticated, local attacker to load a malicious library. To exploit this vulnerability, the attacker must have valid credentials on the Windows system. This vulnerability is due to incorrect handling of directory paths at run time. An attacker could exploit this vulnerability by placing a malicious DLL file in a specific location on the targeted system. This file will execute when the vulnerable application launches. A successful exploit could allow the attacker to execute arbitrary code on the targeted system with the privileges of another user’s account.
Weakness: CWE-427
Which versions are affected by CVE-2021-1240?
It affects 1 product.
Products include Cisco Proximity.
How do I fix CVE-2021-1240?
No fix has been published for CVE-2021-1240 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-1240 being exploited?
There is no known exploitation of CVE-2021-1240 in the wild and no public exploit code.
Sources
Also known as GHSA-x7jf-9rq8-cf6r.