Vulnerability · Published Sep 23, 2021 · Assigned by cisco

CVE-2021-1612Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability

Medium 5.5

In plain English

A medium-severity security flaw in Cisco IOS XE SD-WAN Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.2%top 83.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the Cisco IOS XE SD-WAN Software CLI could allow an authenticated, local attacker to overwrite arbitrary files on the local system. This vulnerability is due to improper access controls on files within the local file system. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on an affected device.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco IOS XE SD-WAN Software	n/a

Weakness: CWE-61 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References

20210922 Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability vendor-advisory, x_refsource_CISCO