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Pi-hole Ad-Blocker <= 5.0 XSS Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The Pi-hole Ad-Blocker is prone to a cross-site scripting vulnerability in piholedhcp.
Insight
Insight
Pi-hole allows code injection in piholedhcp (the Static DHCP Leases section) by modifying Teleporter backup files and then restoring them. This occurs in settings.php. To exploit this, an attacker would request a backup of limited files via teleporter.php. These are placed into a .tar.gz archive. The attacker then modifies the host parameter in dnsmasq.d files, and then compresses and uploads these files again.
Affected Software
Affected Software
Pi-hole Ad-Blocker version 5.0 and prior.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
No known solution is available as of 26th June, 2020. Information regarding this issue will be updated once solution details are available.