The Gravity updater in Pi-hole through 4.4 allows an authenticated...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- 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
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.