Main Vulnerability Database Vulnerabilities #VU51705

Files or Directories Accessible to External Parties in Cisco SD-WAN vEdge Routers and Cisco SD-WAN - CVE-2021-1434

Published: March 24, 2021

Vulnerability identifier: #VU51705

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-2021-1434

CWE-ID: CWE-552

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists in the CLI of Cisco IOS XE SD-WAN due to improper input validation. A local user can overwrite and corrupt arbitrary files on the system.

The vulnerability affects the following products with enabled SD-WAN:

1000 Series Integrated Services Routers (ISRs)
4000 Series ISRs
ASR 1000 Series Aggregation Services Routers
Cloud Services Router 1000V Series

Affected software

Cisco SD-WAN vEdge Routers
Cisco SD-WAN

How to mitigate CVE-2021-1434

Install updates from vendor's website.

External References

Related Security Bulletins