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Exploited in the wildServers & business softwareWork IT

CVE-2020-8816 Pi-hole AdminLTE: command or code injection

In plain words: The program treats text it receives as instructions instead of plain data. The attacker can run commands on the machine — often the whole device is taken over.

Confirmed exploited by CISA on · US federal patch deadline Jun 10, 2022

What to do

  1. Install Pi-hole's security update for AdminLTE. If no update exists, follow the vendor's workaround or stop using the product until one ships.
  2. Keep a list of every internet-facing server you run so nothing is forgotten.
  3. Patch anything in this catalog first, ahead of normal patch cycles.
  4. Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.

Who is affected

Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.

The details

Official name
Pi-Hole AdminLTE Remote Code Execution Vulnerability
Product
Pi-hole AdminLTE
CISA description
Pi-hole Web v4.3.2 (aka AdminLTE) allows Remote Code Execution by privileged dashboard users via a crafted DHCP static lease.
Type of flaw
Command or code injection (CWE-78)
Confirmed exploited
Dec 10, 2021
US federal patch deadline
Jun 10, 2022

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Answering about CVE-2020-8816 ·

Questions about CVE-2020-8816

Is CVE-2020-8816 being exploited?

Yes. CISA added CVE-2020-8816 to its Known Exploited Vulnerabilities catalog on Dec 10, 2021, which means there is reliable evidence of real-world attacks.

How do I fix CVE-2020-8816?

Install Pi-hole's security update for AdminLTE. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.

Am I affected by CVE-2020-8816?

Only if you use Pi-hole AdminLTE. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

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