CVE-2023-33983 Missing authorization in n/a

High 7.4 Published Updated

Briar's introduction client lacks out-of-band key verification, allowing introducers to perform man-in-the-middle attacks on private communications.

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-2023-33983?

CVE-2023-33983 is a high-severity missing authorization vulnerability in n/a, published on 24 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Introduction Client in Briar through 1.5.3 does not implement out-of-band verification for the public keys of introducees. An introducer can launch man-in-the-middle attacks against later private communication between two introduced parties.

Weakness: CWE-862

Which versions are affected by CVE-2023-33983?

It affects 1 product.

Products include Briarproject Briar.

How do I fix CVE-2023-33983?

No fix has been published for CVE-2023-33983 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-2023-33983 being exploited?

There is no known exploitation of CVE-2023-33983 in the wild and no public exploit code.

Sources

Also known as GHSA-3jcf-wh8c-cfcc.

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