CVE-2021-1443 — MEDIUM (5.5)

Vulnerability Description

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.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Cisco	Ios Xe	16.9.1

Related Weaknesses (CWE)

CWE-78 CWE-77

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iVendor Advisory

FAQ

What is CVE-2021-1443?

CVE-2021-1443 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 de...

How severe is CVE-2021-1443?

CVE-2021-1443 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-1443?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe.