CVE-2024-20320 Privilege escalation in Cisco IOS XR Software
A local attacker with low privileges can elevate to root on Cisco IOS XR routers by exploiting insufficient validation in the SSH client CLI command.
- 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-2024-20320?
CVE-2024-20320 is a high-severity vulnerability in Cisco Ios Xr, published on 13 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the SSH client feature of Cisco IOS XR Software for Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 Series and 5700 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of arguments that are included with the SSH client CLI command. An attacker with low-privileged access to an affected device could exploit this vulnerability by issuing a crafted SSH client command to the CLI. A successful exploit could allow the attacker to elevate privileges to root on the affected device.
Weakness: CWE-266
Which versions are affected by CVE-2024-20320?
It affects 1 product.
Products include Cisco Ios Xr.
How do I fix CVE-2024-20320?
No fix has been published for CVE-2024-20320 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-20320 being exploited?
There is no known exploitation of CVE-2024-20320 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xr
- CVE-2020-3118 Cisco IOS XR Software Discovery Protocol Format String
- CVE-2020-3569 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2020-3566 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2010-3035 Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service
- CVE-2022-20821 Cisco IOS XR Open Port
Sources
Also known as GHSA-4hv7-4c5m-8c4c.