Description
Prima Systems FlexAir, Versions 2.4.9api3 and prior. The application allows the upload of arbitrary Python scripts when configuring the main central controller. These scripts can be immediately executed because of root code execution, not as a web server user, allowing an authenticated attacker to gain full system access.
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
- Prima Access Control 2.3.35 - Arbitrary File Upload EDB-47634 · webapps · Nov 12, 2019
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- ICSA-19-211-02 Prima Systems FlexAir CISA ICS & IT advisories · Jul 30, 2019
References
- https://applied-risk.com/labs/advisories
- https://applied-risk.com/index.php/download_file/view/199/165
- https://applied-risk.com/resources/ar-2019-007
- https://www.us-cert.gov/ics/advisories/icsa-19-211-02
- http://packetstormsecurity.com/files/155273/Prima-Access-Control-2.3.35-Script-Upload-Remote-Code-Execution.html