#VU52931 Files or Directories Accessible to External Parties in Cisco Systems, Inc products - CVE-2021-1512

Vulnerability identifier: #VU52931

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-1512

CWE-ID: CWE-552

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco SD-WAN vBond Orchestrator
Other software / Other software solutions
Cisco SD-WAN vManage
Other software / Other software solutions
Cisco SD-WAN vEdge Routers
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco SD-WAN vEdge Cloud Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco SD-WAN vSmart Controller
Hardware solutions / Other hardware appliances

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to overwrite arbitrary files on the system.

The vulnerability exists in the CLI of Cisco SD-WAN Software when processing user-supplied input parameters of a specific CLI command. A local user can run a specially crafted command and corrupt arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco SD-WAN vBond Orchestrator: before 18.4.6

Cisco SD-WAN vEdge Routers: before 18.4.6

Cisco SD-WAN vEdge Cloud Router: before 18.4.6

Cisco SD-WAN vManage: before 18.4.6

Cisco SD-WAN vSmart Controller: before 18.4.6

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-arbfile-7Qhd9mCn
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs98457

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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.