Vulnerability identifier: #VU52912

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1234

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco SD-WAN vManage
Other software / Other software solutions

Vendor: Cisco Systems, Inc

Description

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco SD-WAN vManage: 19.1.0 - 20.5.0

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-vmaninfdis3-OvdR6uu8
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu28438
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu28450

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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