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CVE-2022-37393 is a privilege escalation vulnerability in Zimbra Collaboration Suite 8.8.15 due to a misconfiguration in the sudoers file. The zimbra user is permitted to execute the zmslapd binary as root with arbitrary parameters. zmslapd, as part of its normal operation, can load a user-supplied configuration file, which may specify plugins in the form of shared object (.so) files. These plugins are then executed as root, allowing the zimbra user to execute arbitrary code with root privileges.
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This repository contains a single Metasploit module (modules/exploits/linux/local/zimbra_slapper_priv_esc.rb) that exploits a local privilege escalation vulnerability (CVE-2022-37393) in Zimbra Collaboration Suite. The exploit leverages a misconfiguration in Zimbra's sudoers file, allowing the 'zimbra' user to execute the 'zmslapd' binary as root with arbitrary parameters. The module creates a malicious shared object (.so) file and a configuration file, places them in a writable directory (default: /tmp), and then uses sudo to execute zmslapd with the configuration, causing the .so file to be loaded and executed as root. The exploit is operational and provides a root shell or Meterpreter session if successful. The module is well-structured, includes checks for prerequisites, and cleans up after execution. The only file in the repository is the Metasploit module itself, written in Ruby.
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