Vulnerability · Published Mar 24, 2021 · Assigned by cisco

CVE-2021-1435Cisco IOS XE Software Web UI Command Injection Vulnerability

Medium 6.6

In plain English

A medium-severity path traversal in Cisco IOS XE 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 8.5% (higher than 95% of all known vulnerabilities).

Severity (CVSS 3.0)6.6Medium

Exploit odds (30 days)8.5%top 4.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to inject arbitrary commands that can be executed as the root user. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted request to the web UI of an affected device with arbitrary commands injected into a portion of the request. A successful exploit could allow the attacker to execute arbitrary commands as the root user.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco IOS XE Software	n/a

Weakness: CWE-22 · Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

References

20210324 Cisco IOS XE Software Web UI Command Injection Vulnerability vendor-advisory, x_refsource_CISCO