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A buffer overflow vulnerability exists in the pmmasterd daemon of Quest One Identity Privilege Manager for Unix versions prior to 6.0.0.061. The flaw is triggered by a crafted ACT_ALERT_EVENT request, which causes memory corruption due to an unsafe memcpy call in the pmm_handle_incoming_ping() function. This vulnerability can be exploited remotely via port 12345, regardless of whether the server is configured as a policy server for Unix or as a Sudo Plugin. Exploitation can result in denial of service, memory leakage, or remote code execution as root.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (quest_pmmasterd_bof.rb) that exploits a buffer overflow vulnerability (CVE-2017-6553) in the Quest Privilege Manager's pmmasterd daemon on Linux systems. The exploit targets versions prior to 6.0.0-27, specifically when configured as a policy server. The module is written in Ruby and leverages the Metasploit framework's TCP exploitation capabilities. It constructs a specially crafted network packet to trigger the buffer overflow, using a ROP chain to execute /bin/sh on the target, thereby granting the attacker a shell. The exploit requires the attacker to bind to a privileged port (<=1024), which usually means root access is needed on the attacker's machine. The only fingerprintable endpoint is the TCP port (default 12345) on which the vulnerable service listens. The module provides both check and exploit routines for x64 and x86 targets, and is operational with a working payload, but is not weaponized for mass exploitation.
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