Privilege escalation in Cisco SD-WAN Software

1) Execution with unnecessary privileges

EUVDB-ID: #VU53756

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1528

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

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

The vulnerability exists due to the affected software does not properly restrict access to privileged processes. A local user can invoke a privileged process in the affected system and perform actions with the privileges of the root user.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco SD-WAN vBond Orchestrator: 20.4 - 20.5

Cisco SD-WAN vEdge Cloud Router: 20.4 - 20.5

Cisco SD-WAN vEdge Routers: 20.4 - 20.5

Cisco SD-WAN vManage: 20.4 - 20.5

Cisco SD-WAN vSmart Controller: 20.4 - 20.5

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-fuErCWwF

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.