CVE-2020-11108

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.

Weakness classification

• CWE-434: Unrestricted Upload of File with Dangerous Type

Primary references

• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org — Exploit, Third Party Advisory
• cve@mitre.org — Exploit, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108
• af854a3a-2127-422b-91ae-364da2661108
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory