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An unauthenticated command injection vulnerability exists in stamparm/maltrail (Maltrail) versions <=0.54. A remote attacker can execute arbitrary operating system commands via the username parameter in a POST request to the /login endpoint. This occurs due to unsafe handling of user-supplied input passed to subprocess.check_output() in core/http.py, allowing injection of shell metacharacters. Exploitation does not require authentication and commands are executed with the privileges of the Maltrail process.
Reserved 2025-04-15 | Published 2025-07-02 | Updated 2025-07-02 | Assigner VulnCheckCWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-306 Missing Authentication for Critical Function
Chris Wild (@briskets)
raw.githubusercontent.com/...loits/unix/http/maltrail_rce.rb
huntr.com/bounties/be3c5204-fbd9-448d-b97c-96a8d2941e87
github.com/stamparm/maltrail
github.com/stamparm/maltrail/issues/19146
vulncheck.com/advisories/stamparm-maltrail-rce
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