CVE-2002-1747 Missing authorization in n/a

Medium 5.0 Published 21 Jun 2005 Updated 8 Aug 2024

Remote attackers can inject data into user sessions without authentication due to lack of packet verification in Vtun.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2002-1747?

CVE-2002-1747 is a medium-severity missing authorization vulnerability in n/a, published on 21 Jun 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.

Which versions are affected by CVE-2002-1747?

It affects 1 product.

Products include Maxim Krasnyansky Vtun.

How do I fix CVE-2002-1747?

Upgrade to a fixed version.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2002-1747 being exploited?

There is no known exploitation of CVE-2002-1747 in the wild and no public exploit code.

CVE-2002-1746 Other in n/a Medium 5.0

Sources

Also known as DEBIAN-CVE-2002-1747, GHSA-hf68-wq7f-gmhq.