HTTP: Pi-Hole HeisenbergCompensator Blocklist Command Execution
This signature detects attempts to exploit a known vulnerability against Pi-Hole. A successful attack can lead to arbitrary code execution.
Extended 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.
Affected Products
Pi-hole pi-hole
References
CVE: CVE-2020-11108
Short Name
HTTP:CTS:PI-HOLE-BLOCKLIST-CE
Severity
Critical
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
Blocklist CVE-2020-11108 Command Execution HeisenbergCompensator Pi-Hole
Release Date
07/13/2021
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3400
False Positive
Unknown
Vendors
Pi-hole
CVSS Score
9.0