CVE-2021-23155 Weak cryptography in Command Centre Mobile Client for Android

Critical 9.0 Published Updated

Improper certificate validation in Gallagher Command Centre Mobile Client allows man-in-the-middle attacks to impersonate the server.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-23155?

CVE-2021-23155 is a critical vulnerability in Gallagher Command Centre Mobile Client for Android, published on 18 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper validation of the cloud certificate chain in Mobile Client allows man-in-the-middle attack to impersonate the legitimate Command Centre Server. This issue affects: Gallagher Command Centre Mobile Client for Android 8.60 versions prior to 8.60.065; version 8.50 and prior versions.

Weakness: CWE-295, CWE-296

Which versions are affected by CVE-2021-23155?

It affects 1 product.

Products include Gallagher Command Centre Mobile Client.

How do I fix CVE-2021-23155?

No fix has been published for CVE-2021-23155 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-23155 being exploited?

There is no known exploitation of CVE-2021-23155 in the wild and no public exploit code.

Sources

Also known as GHSA-mqv2-j79j-4gqf.

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