#VU51978 Permissions, Privileges, and Access Controls in Cisco SD-WAN vManage - CVE-2021-1480

Vulnerability identifier: #VU51978

Vulnerability risk: Low

CVSSv4.0: 7.1 [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/E:P/U:Clear]

CVE-ID: CVE-2021-1480

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: Yes

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

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper validation of input to the system file transfer functions. A local user can send a specially crafted request, overwrite arbitrary files and modify the system to gain elevated privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco SD-WAN vManage: 18.4 - 20.4.0

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-YuTVWqy

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.