Improper Authorization in Catalyst SD-WAN Manager (formerly SD-WAN vManage) - CVE-2021-1234
Published: May 6, 2021
Vulnerability identifier: #VU52912
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1234
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to absence of authentication for sensitive information in the cluster management interface. A remote attacker can send a specially crafted request to the management interface and gain access to sensitive information.
Note, successful exploitation of the vulnerability requires that vManage software is in cluster mode.
Affected software
Catalyst SD-WAN Manager (formerly SD-WAN vManage)
How to mitigate CVE-2021-1234
Install updates from vendor's website.
Catalyst SD-WAN Manager (formerly SD-WAN vManage) - addressed in versions 20.3.1, 20.4.1, 20.5.1