CVE-2021-40389 Privilege escalation in n/a

High 8.8 Published Updated

An attacker can escalate privileges to NT SYSTEM authority by replacing a specially-crafted file in the Advantech DeviceOn/iEdge Server installation.

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-2021-40389?

CVE-2021-40389 is a high-severity vulnerability in n/a, published on 28 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A privilege escalation vulnerability exists in the installation of Advantech DeviceOn/iEdge Server 1.0.2. A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-276

Which versions are affected by CVE-2021-40389?

It affects 1 product.

Products include Advantech Deviceon\/Iedge.

How do I fix CVE-2021-40389?

No fix has been published for CVE-2021-40389 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-40389 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40389 exists.

Sources

Also known as GHSA-fgfr-mpqv-pfv7.

Is CVE-2021-40389 in your software?

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