First published: Wed Apr 13 2022(Updated: )
A vulnerability in the CLI of Cisco SD-WAN vManage Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as the root user. The attacker must be authenticated on the affected system as a low-privileged user to exploit this vulnerability. This vulnerability exists because a file leveraged by a root user is executed when a low-privileged user runs specific commands on an affected system. An attacker could exploit this vulnerability by injecting arbitrary commands to a specific file as a lower-privileged user and then waiting until an admin user executes specific commands. The commands would then be executed on the device by the root user. A successful exploit could allow the attacker to escalate their privileges on the affected system from a low-privileged user to the root user. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-vman-tEJFpBSL
Credit: by Andrew Kim the Cisco Advanced Security Initiatives Group
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco SD-WAN | =20.7<20.7.1=20.6<20.6.1=20.5<20.5.1=20.4<20.4.1=20.3<20.3.1=20.1<20.1.2=19.2<19.2.3>=18.3 and earlier<=18.4<18.4.6 | 20.7.1 20.6.1 20.5.1 20.4.1 20.3.1 20.1.2 19.2.3 18.4.6 |
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The vulnerability ID for this Cisco SD-WAN vManage Software privilege escalation vulnerability is cisco-sa-sdwan-privesc-vman-tEJFpBSL.
The severity of the Cisco SD-WAN vManage Software privilege escalation vulnerability is rated as high with a severity value of 7.3.
This Cisco SD-WAN vManage Software privilege escalation vulnerability occurs when an authenticated, low-privileged user is able to execute arbitrary commands on the underlying operating system as the root user.
The following versions of Cisco SD-WAN vManage Software are affected by this privilege escalation vulnerability: 20.7.1, 20.6.1, 20.5.1, 20.4.1, 20.3.1, 20.1.2, 19.2.3, and 18.4.6.
To fix the Cisco SD-WAN vManage Software privilege escalation vulnerability, upgrade to a version that is not affected by this vulnerability. Please refer to the Cisco Security Advisory for specific remediation details.