OS Command Injection in Cisco Systems, Inc products - CVE-2023-20035
Published: March 23, 2023
Vulnerability identifier: #VU73987
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-20035
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the CLI. A local user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Cisco 1000 Series Integrated Services Routers
4000 Series Integrated Services Routers
Cisco ASR 1000 Series Aggregation Services Routers
Catalyst 8000 Edge Platforms Family
Cloud Services Router 1000V Series
Cisco IOS XE
Cisco IOS XE SD-WAN
4000 Series Integrated Services Routers
Cisco ASR 1000 Series Aggregation Services Routers
Catalyst 8000 Edge Platforms Family
Cloud Services Router 1000V Series
Cisco IOS XE
Cisco IOS XE SD-WAN
How to mitigate CVE-2023-20035
Install updates from vendor's website.
Cisco IOS XE - addressed in versions 17.6.4, 17.6.5, 17.9.1, 17.9.1w, 17.9.1x, 17.9.1x1, 17.9.1a, 17.9.2, 17.9.2a, 17.9.3, 17.10.1, 17.10.1a, 17.10.1b
Cisco IOS XE SD-WAN - addressed in versions 17.6.4, 17.6.5, 17.9.1, 17.9.1w, 17.9.1x, 17.9.1x1, 17.9.1a, 17.9.2, 17.9.2a, 17.9.3, 17.10.1, 17.10.1a, 17.10.1b
Cisco IOS XE SD-WAN - addressed in versions 17.6.4, 17.6.5, 17.9.1, 17.9.1w, 17.9.1x, 17.9.1x1, 17.9.1a, 17.9.2, 17.9.2a, 17.9.3, 17.10.1, 17.10.1a, 17.10.1b