Description
osTicket 1.10.1 provides a functionality to upload 'html' files with associated formats. However, it does not properly validate the uploaded file's contents and thus accepts any type of file, such as with a tickets.php request that is modified with a .html extension changed to a .exe extension. An attacker can leverage this vulnerability to upload arbitrary files on the web application having malicious content.
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.
Exploit-DB 1
- osTicket 1.10.1 - Arbitrary File Upload EDB-45169 · webapps · Aug 8, 2018
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://becomepentester.blogspot.com/2017/10/osTicket-File-Upload-Restrictions-Bypassed-CVE-2017-15580.html
- https://packetstormsecurity.com/files/144747/osticket1101-shell.txt
- 45169 exploit
- http://0day.today/exploits/28864
- https://cxsecurity.com/issue/WLB-2017100187
- https://www.cyber-security.ro/blog/2017/10/25/osticket-1-10-1-shell-upload/
- http://nakedsecurity.com/cve/CVE-2017-15580/