CVE-2020-8813 Command injection in n/a
Remote attackers can execute arbitrary OS commands via shell metacharacters in a cookie if guest users have graph real-time privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-8813?
CVE-2020-8813 is a high-severity command injection vulnerability in Cacti Cacti, published on 22 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
graph_realtime.php in Cacti 1.2.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in a cookie, if a guest user has the graph real-time privilege.
Weakness: CWE-78
Which versions are affected by CVE-2020-8813?
It affects 5 products.
Products include Cacti Cacti, Debian Debian Linux, Fedoraproject Fedora, Opensuse Suse Package Hub, Opmantek Open-Audit.
How do I fix CVE-2020-8813?
Upgrade to a fixed version.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2020-8813 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-8813 exists.
Public exploit code: 2 Exploit-DB entries, 1 Nuclei template and 4 proofs of concept on GitHub.
Other vulnerabilities in Cacti Cacti
- CVE-2022-46169 Cacti Command Injection
- CVE-2026-39893 Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php
- CVE-2026-39938 Cacti: Unauthenticated RCE on Graph Image
- CVE-2026-39955 Cacti has Pre-Authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php
- CVE-2023-39361 Unauthenticated SQL Injection in graph_view.php in Cacti
Sources
Also known as DEBIAN-CVE-2020-8813, GHSA-gg99-fwr4-rcj9, UBUNTU-CVE-2020-8813.