CVE-2024-20497 Cisco Expressway Edge Improper Authorization Vulnerability
Authenticated MRA users can bypass authorization to intercept calls or spoof caller IDs on Cisco Expressway Edge systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-20497?
CVE-2024-20497 is a medium-severity missing authorization vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 4 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in Cisco Expressway Edge (Expressway-E) could allow an authenticated, remote attacker to masquerade as another user on an affected system. This vulnerability is due to inadequate authorization checks for Mobile and Remote Access (MRA) users. An attacker could exploit this vulnerability by running a series of crafted commands. A successful exploit could allow the attacker to intercept calls that are destined for a particular phone number or to make phone calls and have that phone number appear on the caller ID. To successfully exploit this vulnerability, the attacker must be an MRA user on an affected system.
Weakness: CWE-285
Which versions are affected by CVE-2024-20497?
It affects 1 product.
Products include Cisco Expressway-E.
How do I fix CVE-2024-20497?
No fix has been published for CVE-2024-20497 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2024-20497 being exploited?
There is no known exploitation of CVE-2024-20497 in the wild and no public exploit code.
Sources
Also known as GHSA-2vgj-5cmq-q6q3.