CVE-2018-19443 Session Fixation in Tryton

Medium 5.9 Published Updated

Man-in-the-middle attackers can steal user session tokens because the Tryton client sends them in cleartext during failed bus connections.

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

What is CVE-2018-19443?

CVE-2018-19443 is a medium-severity vulnerability in n/a, published on 22 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The client in Tryton 5.x before 5.0.1 tries to make a connection to the bus in cleartext instead of encrypted under certain circumstances in bus.py and jsonrpc.py. This connection attempt fails, but it contains in the header the current session of the user. This session could then be stolen by a man-in-the-middle.

Weakness: CWE-384

Which versions are affected by CVE-2018-19443?

3 open source packages ship an affected version, including tryton. It affects 1 product.

PackageAffectedFixed in
tryton PyPIFrom 5.0.05.0.1
tryton PyPIFrom 5.0.05.0.1
tryton PyPIFrom 5.0.05.0.1

Products include Tryton Tryton.

How do I fix CVE-2018-19443?

Upgrade tryton to 5.0.1 or later.

Is CVE-2018-19443 being exploited?

There is no known exploitation of CVE-2018-19443 in the wild and no public exploit code.

Sources

Also known as GHSA-32w7-9whp-cjp9, PYSEC-2018-77, UBUNTU-CVE-2018-19443.

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