CVE-2021-1443CWE-77

Cisco IOS XE Software Web UI OS Command Injection Vulnerability

Medium · published March 24, 2021

CVSS v3.1
5.5
EPSS
2%
Percentile
83.5
In the wild
Unconfirmed
What it is

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to execute arbitrary code with root privileges on the underlying operating system of an affected device. The vulnerability exists because the affected software improperly sanitizes values that are parsed from a specific configuration file. An attacker could exploit this vulnerability by tampering with a specific configuration file and then sending an API call. A successful exploit could allow the attacker to inject arbitrary code that would be executed on the underlying operating system of the affected device. To exploit this vulnerability, the attacker would need to have a privileged set of credentials to the device.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.02342 · 83.5th percentile
Weakness
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2021-03-24T20:06Z
EPSS history
Timeline
  • 24 MAR 20:06Z
    Cisco IOS XE Software Web UI OS Command Injection Vulnerability
    cvelistv5