CVE-2021-1557 Cisco DNA Spaces Connector Privilege Escalation Vulnerabilities

Medium 6.0 Published 22 May 2021 Updated 8 Nov 2024

An authenticated local attacker can exploit insufficient CLI restrictions to elevate privileges to root and execute arbitrary commands on the underlying OS.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1557?

CVE-2021-1557 is a medium-severity command injection vulnerability in Cisco DNA Spaces Connector, published on 22 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Multiple vulnerabilities in Cisco DNA Spaces Connector could allow an authenticated, local attacker to elevate privileges and execute arbitrary commands on the underlying operating system as root. These vulnerabilities are due to insufficient restrictions during the execution of affected CLI commands. An attacker could exploit these vulnerabilities by leveraging the insufficient restrictions during execution of these commands. A successful exploit could allow the attacker to elevate privileges from dnasadmin and execute arbitrary commands on the underlying operating system as root.

Weakness: CWE-78

Which versions are affected by CVE-2021-1557?

It affects 1 product.

Products include Cisco Dna Spaces\.

How do I fix CVE-2021-1557?

No fix has been published for CVE-2021-1557 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-1557 being exploited?

There is no known exploitation of CVE-2021-1557 in the wild and no public exploit code.

Sources

Also known as GHSA-235w-frww-c569.