CVE-2024-20262

Published Mar 13, 2024 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco IOS XR Software

affected

Version	Status	Constraints
`5.2.0`	affected	—
`5.2.1`	affected	—
`5.2.2`	affected	—
`5.2.4`	affected	—
`5.2.3`	affected	—
`5.2.5`	affected	—
`5.2.47`	affected	—
`5.3.0`	affected	—
`5.3.1`	affected	—
`5.3.2`	affected	—
`5.3.3`	affected	—
`5.3.4`	affected	—
`6.0.0`	affected	—
`6.0.1`	affected	—
`6.0.2`	affected	—
`6.1.1`	affected	—
`6.1.2`	affected	—
`6.1.3`	affected	—
`6.1.4`	affected	—
`6.1.12`	affected	—
`6.1.22`	affected	—
`6.1.32`	affected	—
`6.1.36`	affected	—
`6.1.42`	affected	—
`6.2.1`	affected	—
`6.2.2`	affected	—
`6.2.3`	affected	—
`6.2.25`	affected	—
`6.2.11`	affected	—
`6.3.2`	affected	—
`6.3.3`	affected	—
`6.3.15`	affected	—
`6.4.1`	affected	—
`6.4.2`	affected	—
`6.4.3`	affected	—
`6.5.1`	affected	—
`6.5.2`	affected	—
`6.5.3`	affected	—
`6.5.25`	affected	—
`6.5.26`	affected	—
`6.5.28`	affected	—
`6.5.29`	affected	—
`6.5.32`	affected	—
`6.5.33`	affected	—
`6.6.2`	affected	—
`6.6.3`	affected	—
`6.6.25`	affected	—
`6.6.4`	affected	—
`7.0.1`	affected	—
`7.0.2`	affected	—
`7.0.12`	affected	—
`7.0.14`	affected	—
`7.1.1`	affected	—
`7.1.2`	affected	—
`6.7.2`	affected	—
`6.7.4`	affected	—
`7.2.0`	affected	—
`7.2.1`	affected	—
`7.2.2`	affected	—
`7.3.1`	affected	—
`7.3.15`	affected	—
`7.3.2`	affected	—
`7.3.3`	affected	—
`7.3.5`	affected	—
`7.4.1`	affected	—
`7.4.2`	affected	—
`7.5.1`	affected	—
`7.5.3`	affected	—
`7.5.2`	affected	—
`7.5.4`	affected	—
`7.5.5`	affected	—
`7.6.1`	affected	—
`7.6.2`	affected	—
`7.7.1`	affected	—
`7.7.2`	affected	—
`7.7.21`	affected	—
`7.8.1`	affected	—
`7.8.2`	affected	—
`7.9.1`	affected	—
`7.9.2`	affected	—
`7.10.1`	affected	—
`7.10.2`	affected	—

No data.

Vendor	Product	Versions
Cisco	Ios Xr Software	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2024-17977	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.