CVE-2020-11108

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

• Pi-hole 4.4.0 - Remote Code Execution (Authenticated)2020-05-26 · webapps · linux · Verified
• Pi-Hole - heisenbergCompensator Blocklist OS Command Execution (Metasploit)2020-05-19 · remote · php · Verified
• Pi-hole < 4.4 - Authenticated Remote Code Execution / Privileges Escalation2020-05-10 · webapps · linux
• Pi-hole < 4.4 - Authenticated Remote Code Execution2020-05-10 · webapps · linux

Impact

The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload arbitrary files. This can be abused for Remote Code Execution by writing to a PHP file in the web directory. (Also, it can be used in conjunction with the sudo rule for the www-data user to escalate privileges to root.) The code error is in gravity_DownloadBlocklistFromUrl in gravity.sh.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• http://packetstormsecurity.com/files/157623/Pi-hole-4.4-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/157624/Pi-hole-4.4-Remote-Code-Execution-Privilege-Escalation.html
• http://packetstormsecurity.com/files/157748/Pi-Hole-heisenbergCompensator-Blocklist-OS-Command-Execution.html
• http://packetstormsecurity.com/files/157839/Pi-hole-4.4.0-Remote-Code-Execution.html
• https://frichetten.com/blog/cve-2020-11108-pihole-rce/
• https://github.com/Frichetten/CVE-2020-11108-PoC
• http://packetstormsecurity.com/files/157623/Pi-hole-4.4-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/157624/Pi-hole-4.4-Remote-Code-Execution-Privilege-Escalation.html
• http://packetstormsecurity.com/files/157748/Pi-Hole-heisenbergCompensator-Blocklist-OS-Command-Execution.html
• http://packetstormsecurity.com/files/157839/Pi-hole-4.4.0-Remote-Code-Execution.html
• https://frichetten.com/blog/cve-2020-11108-pihole-rce/
• https://github.com/Frichetten/CVE-2020-11108-PoC