Description
Zimbra's sudo configuration permits the zimbra user to execute the zmslapd binary as root with arbitrary parameters. As part of its intended functionality, zmslapd can load a user-defined configuration file, which includes plugins in the form of .so files, which also execute as root.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Synacor | Zimbra Server | 9.0.0.p27 – ≤ 9.0.0.p27, 8.8.15.p34 – ≤ 8.8.15.p34 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
Zimbra zmslapd arbitrary module load
exploit/linux/local/zimbra_slapper_priv_esc
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.