Description
Fortinet FortiAnalyzer before 5.0.12 and 5.2.x before 5.2.5; FortiSwitch 3.3.x before 3.3.3; FortiCache 3.0.x before 3.0.8; and FortiOS 4.1.x before 4.1.11, 4.2.x before 4.2.16, 4.3.x before 4.3.17 and 5.0.x before 5.0.8 have a hardcoded passphrase for the Fortimanager_Access account, which allows remote attackers to obtain administrative access via an SSH session.
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
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Fortinet SSH Backdoor Scanner
auxiliary/scanner/ssh/fortinet_backdoor
Exploit-DB 1
- Fortinet FortiGate 4.x < 5.0.7 - SSH Backdoor Access EDB-43386 · remote · Jan 9, 2016
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://blog.fortinet.com/post/brief-statement-regarding-issues-found-with-fortios
- 20160111 SSH Backdoor for FortiGate OS Version 4.x up to 5.0.7 mailing-list
- http://packetstormsecurity.com/files/135225/FortiGate-OS-5.0.7-SSH-Backdoor.html
- 1034663 vdb-entry
- https://twitter.com/esizkur/status/686842135501508608
- http://www.fortiguard.com/advisory/multiple-products-ssh-undocumented-login-vulnerability
- 39224 exploit