RCE in Cisco iOS Xe Sd-Wan Software
CVE-2021-34729
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software and Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges on an affected device. This vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input in the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands with elevated privileges on the underlying operating system. An attacker would need valid user credentials to exploit this vulnerability.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.004 (28.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Ios Xe Sd-wan Software — versions n/a
- Cisco Ios_xe
- Cisco Ios_xe_sd-wan
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34729?
- CVE-2021-34729 is a medium-severity vulnerability in Cisco iOS Xe Sd-Wan Software, classified under Command Injection. CVSS score: 6.7/10. Published 2021-09-23.
- How severe is CVE-2021-34729?
- Medium severity. CVSS v3 base score is 6.7 out of 10.