CVE-2020-12355 Auth bypass in Intel(R) TXE
An attacker with physical access can bypass authentication in Intel TXE firmware to escalate privileges via replay attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-12355?
CVE-2020-12355 is a medium-severity authentication bypass vulnerability in Intel(R) TXE, published on 12 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Authentication bypass by capture-replay in RPMB protocol message authentication subsystem in Intel(R) TXE versions before 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.
Weakness: CWE-294
Which versions are affected by CVE-2020-12355?
It affects 1 product.
Products include Intel Trusted Execution Engine.
How do I fix CVE-2020-12355?
No fix has been published for CVE-2020-12355 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2020-12355 being exploited?
There is no known exploitation of CVE-2020-12355 in the wild and no public exploit code.
Other vulnerabilities in Intel(R) TXE
Sources
Also known as GHSA-84pm-g9xr-pqcm.