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

Vulnerability identifier: #VU52931

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2021-1512

CWE-ID: CWE-552

Exploitation vector: Local access

Exploit availability: No public exploit available

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.

Cisco SD-WAN vBond Orchestrator
Catalyst SD-WAN Controller (formerly SD-WAN vSmart)
Cisco SD-WAN vEdge Routers
Cisco SD-WAN vEdge Cloud Router
Catalyst SD-WAN Manager (formerly SD-WAN vManage)

Install updates from vendor's website.

Cisco SD-WAN vBond Orchestrator - addressed in versions 18.4.6, 19.2.3, 20.1.2, 20.3.1, 20.4.1, 20.5.1
Catalyst SD-WAN Controller (formerly SD-WAN vSmart) - addressed in versions 18.4.6, 19.2.3, 20.1.2, 20.3.1, 20.4.1, 20.5.1
Cisco SD-WAN vEdge Routers - addressed in versions 18.4.6, 19.2.3, 20.1.2, 20.3.1, 20.4.1, 20.5.1
Catalyst SD-WAN Manager (formerly SD-WAN vManage) - addressed in versions 18.4.6, 19.2.3, 20.1.2, 20.3.1, 20.4.1, 20.5.1
Cisco SD-WAN vEdge Cloud Router - addressed in versions 18.4.6, 19.2.3, 20.1.2, 20.3.1, 20.4.1, 20.5.1

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

• Arbitrary file corruption in Cisco SD-WAN Software