CVE-2018-19321 GIGABYTE Multiple Products: privilege escalation
In plain words: Something running with limited rights can promote itself to full control. Turns a small foothold (like a malicious app) into administrator or system-level access.
Confirmed exploited by CISA on · US federal patch deadline Nov 14, 2022
What to do
- Install GIGABYTE's security update for Multiple Products. 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.
- Patch anything in this catalog first, ahead of normal patch cycles.
- 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
- GIGABYTE Multiple Products Privilege Escalation Vulnerability
- Product
- GIGABYTE Multiple Products
- CISA description
- The GPCIDrv and GDrv low-level drivers in GIGABYTE App Center, AORUS Graphics Engine, XTREME Gaming Engine, and OC GURU II expose functionality to read and write arbitrary physical memory. This could be leveraged by a local attacker to elevate privileges.
- Type of flaw
- Privilege escalation
- Confirmed exploited
- Oct 24, 2022 — known to be used in ransomware attacks
- US federal patch deadline
- Nov 14, 2022
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Answering about CVE-2018-19321 ·
Questions about CVE-2018-19321
Is CVE-2018-19321 being exploited?
Yes. CISA added CVE-2018-19321 to its Known Exploited Vulnerabilities catalog on Oct 24, 2022, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2018-19321?
Install GIGABYTE's security update for Multiple Products. 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-2018-19321?
Only if you use GIGABYTE Multiple Products. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.