CVE-2020-11108

Public Exploit

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 89.47% Top 5%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory packetstormsecurity.com Third-Party Advisory frichetten.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://frichetten.com/blog/cve-2020-11108-pihole-rce/ third party advisory exploit
https://github.com/Frichetten/CVE-2020-11108-PoC third party advisory exploit
http://packetstormsecurity.com/files/157623/Pi-hole-4.4-Remote-Code-Execution.html third party advisory vdb entry exploit
http://packetstormsecurity.com/files/157624/Pi-hole-4.4-Remote-Code-Execution-Privilege-Escalation.html third party advisory vdb entry exploit
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

Frequently Asked Questions

What is the severity of CVE-2020-11108?
CVE-2020-11108 has been scored as a high severity vulnerability.
How to fix CVE-2020-11108?
To fix CVE-2020-11108, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-11108 being actively exploited in the wild?
It is possible that CVE-2020-11108 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~89% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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