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Cribl UI version 1.5.0 contains a vulnerability that allows remote attackers to execute arbitrary commands on the server by sending a specially crafted unauthenticated web request. The vulnerability is due to insufficient input validation or improper handling of user-supplied data in the web interface, leading to command injection.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository demonstrates an exploit against Cribl v1.5.0, leveraging insecure JWT/session handling and the ability to execute arbitrary scripts via the Cribl API. The exploit allows an attacker with a valid JWT token to upload and execute a malicious Node.js script (shell.js) on the target, resulting in a reverse shell to the attacker's host and port. The repository contains three files: a detailed README.md explaining the vulnerability and exploitation steps, a curl.txt file with example curl commands for automating the attack, and shell.js, a Node.js reverse shell payload. The attack is performed via the /api/v1/system/scripts endpoint, and requires the target to have outbound network access. The exploit provides remote command execution on the target system.
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