CVE-2023-31100 Missing authorization in SecureCore™ Technology™ 4
Attackers can modify SPI flash via improper access control in the SMI handler, potentially leading to code execution or privilege escalation.
- 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-2023-31100?
CVE-2023-31100 is a high-severity missing authorization vulnerability in Phoenix SecureCore™ Technology™ 4, published on 14 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification. This issue affects SecureCore™ Technology™ 4:
* from 4.3.0.0 before 4.3.0.203 *
from
4.3.1.0 before 4.3.1.163 *
from
4.4.0.0 before 4.4.0.217 *
from
4.5.0.0 before 4.5.0.138
Weakness: CWE-284
Which versions are affected by CVE-2023-31100?
It affects 1 product.
Products include Phoenixtech Securecore Technology.
How do I fix CVE-2023-31100?
No fix has been published for CVE-2023-31100 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-31100 being exploited?
There is no known exploitation of CVE-2023-31100 in the wild and no public exploit code.
Other vulnerabilities in Phoenix SecureCore™ Technology™ 4
Sources
Also known as GHSA-h3cr-gxpm-fxxc.