CVE-2021-1264 Cisco DNA Center Command Runner Command Injection Vulnerability

What is CVE-2021-1264?

CVE-2021-1264 is a critical command injection vulnerability in Cisco Digital Network Architecture Center (DNA Center), published on 20 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the Command Runner tool of Cisco DNA Center could allow an authenticated, remote attacker to perform a command injection attack. The vulnerability is due to insufficient input validation by the Command Runner tool. An attacker could exploit this vulnerability by providing crafted input during command execution or via a crafted command runner API call. A successful exploit could allow the attacker to execute arbitrary CLI commands on devices managed by Cisco DNA Center.

Weakness: CWE-78

Which versions are affected by CVE-2021-1264?

It affects 1 product.

Products include Cisco Catalyst Center.

How do I fix CVE-2021-1264?

No fix has been published for CVE-2021-1264 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-2021-1264 being exploited?

There is no known exploitation of CVE-2021-1264 in the wild and no public exploit code.

Other vulnerabilities in Cisco Digital Network Architecture Center (DNA Center)

• CVE-2023-20055 Cisco DNA Center Privilege Escalation Vulnerability High 8.0
• CVE-2021-1265 Cisco DNA Center Information Disclosure Vulnerability High 7.7
• CVE-2026-20191 Cisco Catalyst Center Arbitrary File Read Vulnerability High 7.5
• CVE-2024-20350 Cisco Catalyst Center Static SSH Host Key Vulnerability High 7.5
• CVE-2020-3411 Cisco DNA Center Information Disclosure Vulnerability High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-j5x7-4h7r-4q2r.