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CVE-2020-8813 is an OS command injection vulnerability in Cacti 1.2.8, specifically in the graph_realtime.php script. The vulnerability allows remote attackers to execute arbitrary operating system commands by supplying shell metacharacters in a cookie, provided that the guest user has the graph real-time privilege. The vulnerable code fails to properly sanitize user-supplied input from cookies before passing it to a shell command.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos (2 hidden).
This repository provides a proof-of-concept (PoC) exploit for CVE-2020-8813, a remote code execution vulnerability in Cacti version 1.2.8. The main exploit script, 'CVE-2020-8813.py', is a Python3 tool that targets the 'graph_realtime.php' endpoint of a Cacti installation. It allows an attacker to execute arbitrary shell commands on the target server by injecting a specially crafted payload into the 'Cacti' cookie. The exploit supports both unauthenticated (guest) and authenticated attack modes, depending on the target's configuration. If guest access is not enabled, the script can attempt to enable it using valid credentials. The repository also includes a Dockerfile and Makefile under 'test_env/' to set up a vulnerable Cacti 1.2.8 environment for testing. The exploit is network-based, requiring HTTP(S) access to the target Cacti instance. The payload is a base64-encoded shell command executed via bash. The repository is well-structured, with clear separation between exploit code, documentation, and testing environment setup.
This repository contains two Python exploit scripts targeting Cacti v1.2.8 (CVE-2020-8813) for remote code execution. The first script (Cacti-postauth-rce.py) exploits the vulnerability post-authentication, requiring valid credentials, and enables guest access before sending a malicious payload via a crafted cookie to the /graph_realtime.php endpoint. The second script (Cacti-preauth-rce.py) exploits the same vulnerability without authentication, provided guest access is already enabled, and also delivers the payload via the same endpoint. Both scripts use a netcat reverse shell payload to provide the attacker with shell access to the target system. The repository is well-structured, with clear separation between pre-auth and post-auth exploit scenarios, and includes a README describing the vulnerability and usage context.
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