CVE-2009-4419 Security feature bypass in n/a
Local attackers can bypass Intel Trusted Execution Technology protections by modifying MCHBAR registers, gaining elevated privileges on affected chipsets.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-4419?
CVE-2009-4419 is a high-severity vulnerability in n/a, published on 24 Dec 2009. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Intel Q35, GM45, PM45 Express, Q45, and Q43 Express chipsets in the SINIT Authenticated Code Module (ACM), which allows local users to bypass the Trusted Execution Technology protection mechanism and gain privileges by modifying the MCHBAR register to point to an attacker-controlled region, which prevents the SENTER instruction from properly applying VT-d protection while an MLE is being loaded.
Weakness: CWE-16
Which versions are affected by CVE-2009-4419?
It affects 5 products.
Products include Intel Gm45 Chipset, Intel Pm45 Express Chipset, Intel Q35 Chipset, Intel Q43 Express Chipset, Intel Q45 Chipset.
How do I fix CVE-2009-4419?
No fix has been published for CVE-2009-4419 yet. Limit exposure of the affected software until one is available.
Is CVE-2009-4419 being exploited?
There is no known exploitation of CVE-2009-4419 in the wild and no public exploit code.
Sources
Also known as GHSA-v58m-xpjx-9qqm.