Improper Privilege Management in Cisco IOS XR Software

1) Improper Privilege Management

EUVDB-ID: #VU87513

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-20262

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper privilege management in the Secure Copy Protocol (SCP) and SFTP feature. A local user can cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco IOS XR: 7.9 - 24.1

Cisco 8000 Series Routers: All versions

Cisco 8201 Router: All versions

Cisco 8202 Router: All versions

Cisco 8808 Router: All versions

Cisco 8812 Router: All versions

Cisco 8818 Router: All versions

Cisco ASR 9000 Series Aggregation Services Routers: All versions

Cisco ASR 9006 Router: All versions

Cisco ASR 9010 Router: All versions

Cisco ASR 9901 Router: All versions

Cisco ASR 9902 Router: All versions

Cisco ASR 9903 Router: All versions

Cisco ASR 9904 Router: All versions

Cisco ASR 9906 Router: All versions

Cisco ASR 9910 Router: All versions

Cisco ASR 9912 Router: All versions

Cisco ASR 9922 Router: All versions

Cisco IOS XRv 9000 Router: All versions

Cisco NCS 540-12Z20G-SYS-A Router: All versions

Cisco NCS 540-12Z20G-SYS-D Router: All versions

Cisco NCS 540-24Q8L2DD-SYS Router: All versions

Cisco NCS 540-24Z8Q2C-SYS Router: All versions

Cisco NCS 540-28Z4C-SYS-A Router: All versions

Cisco NCS 540-28Z4C-SYS-D Router: All versions

Cisco NCS 540-6Z14S-SYS-D Router: All versions

Cisco NCS 540-6Z18G-SYS-A Router: All versions

Cisco NCS 540-6Z18G-SYS-D Router: All versions

Cisco NCS 540-ACC-SYS Router: All versions

Cisco NCS 540-FH-AGG Router: All versions

Cisco NCS 540-FH-CSR-SYS Router: All versions

Cisco NCS 540X-12Z16G-SYS-A Router: All versions

Cisco NCS 540X-12Z16G-SYS-D Router: All versions

Cisco NCS 540X-16Z4G8Q2C-A Router: All versions

Cisco NCS 540X-16Z4G8Q2C-D Router: All versions

Cisco NCS 540X-16Z8Q2C-D Router: All versions

Cisco NCS 540X-4Z14G2Q-A Router: All versions

Cisco NCS 540X-4Z14G2Q-D Router: All versions

Cisco NCS 540X-6Z18G-SYS-A Router: All versions

Cisco NCS 540X-6Z18G-SYS-D Router: All versions

Cisco NCS 540X-8Z16G-SYS-A Router: All versions

Cisco NCS 540X-8Z16G-SYS-D Router: All versions

Cisco NCS 540X-ACC-SYS Router: All versions

Cisco NCS 560-4-SYS Router: All versions

Cisco NCS 560-4-SYS-E Router: All versions

Cisco NCS 560-4-SYS-E-CC Router: All versions

Cisco NCS 560-7-SYS Router: All versions

Cisco NCS 560-7-SYS-E Router: All versions

Cisco Network Convergence System 1000 Series: All versions

Cisco Network Convergence System 1001: All versions

Cisco Network Convergence System 1002: All versions

Cisco Network Convergence System 1004: All versions

Cisco Network Convergence System 1010: All versions

Cisco Network Convergence System 500 Series Routers: All versions

Cisco Network Convergence System 5000 Series: All versions

Cisco Network Convergence System 5001: All versions

Cisco Network Convergence System 5002: All versions

Cisco Network Convergence System 5011: All versions

Cisco Network Convergence System 540 Router: All versions

Cisco Network Convergence System 540 Series Routers: All versions

Cisco Network Convergence System 5500 Series: All versions

Cisco Network Convergence System 5501: All versions

Cisco Network Convergence System 5501-SE: All versions

Cisco Network Convergence System 5502: All versions

Cisco Network Convergence System 5502-SE: All versions

Cisco Network Convergence System 5504: All versions

Cisco Network Convergence System 5508: All versions

Cisco Network Convergence System 5516: All versions

Cisco Network Convergence System 55A1-24H: All versions

Cisco Network Convergence System 55A1-24Q6H-S: All versions

Cisco Network Convergence System 55A1-24Q6H-SS: All versions

Cisco Network Convergence System 55A1-36H: All versions

Cisco Network Convergence System 55A1-36H-SE: All versions

Cisco Network Convergence System 55A1-48Q6H: All versions

Cisco Network Convergence System 55A2-MOD-HD-S: All versions

Cisco Network Convergence System 55A2-MOD-S: All versions

Cisco Network Convergence System 55A2-MOD-SE-S: All versions

Cisco Network Convergence System 560 Router: All versions

Cisco Network Convergence System 560 Series Routers: All versions

Cisco Network Convergence System 5700 Series: All versions

Cisco Network Convergence System 57B1-5DSE-SYS: All versions

Cisco Network Convergence System 57B1-6D24-SYS: All versions

Cisco Network Convergence System 57C3-MOD: All versions

Cisco Network Convergence System NCS-57C1-48Q6-SYS: All versions

Cisco Network Convergence System NCS-57D2-18DD-SYS: All versions

External links

http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-scp-dos-kb6sUUHw

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.