CVE-2024-20262 Privilege escalation in Cisco IOS XR Software
An authenticated local attacker can overwrite system files via SCP/SFTP commands, causing denial of service and potential privilege escalation on Cisco IOS XR devices.
- 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-2024-20262?
CVE-2024-20262 is a medium-severity vulnerability in Cisco IOS XR Software, 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 Secure Copy Protocol (SCP) and SFTP feature of Cisco IOS XR Software could allow an authenticated, local attacker to create or overwrite files in a system directory, which could lead to a denial of service (DoS) condition. The attacker would require valid user credentials to perform this attack. This vulnerability is due to a lack of proper validation of SCP and SFTP CLI input parameters. An attacker could exploit this vulnerability by authenticating to the device and issuing SCP or SFTP CLI commands with specific parameters. A successful exploit could allow the attacker to impact the functionality of the device, which could lead to a DoS condition. The device may need to be manually rebooted to recover. Note: This vulnerability is exploitable only when a local user invokes SCP or SFTP commands at the Cisco IOS XR CLI. A local user with administrative privileges could exploit this vulnerability remotely.
Weakness: CWE-269
Which versions are affected by CVE-2024-20262?
How do I fix CVE-2024-20262?
No fix has been published for CVE-2024-20262 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-20262 being exploited?
There is no known exploitation of CVE-2024-20262 in the wild and no public exploit code.
Sources
Also known as GHSA-x2hj-p6wp-544c.