CVE-2018-3815 Missing authorization in n/a

Medium 5.7 Published 8 Jan 2018 Updated 5 Aug 2024

An authenticated attacker can spoof email senders by manipulating XIMSS protocol elements, bypassing sender validation in CommuniGate Pro.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-3815?

CVE-2018-3815 is a medium-severity missing authorization vulnerability in n/a, published on 8 Jan 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The "XML Interface to Messaging, Scheduling, and Signaling" (XIMSS) protocol implementation in CommuniGate Pro (CGP) 6.2 suffers from a Missing XIMSS Protocol Validation attack that leads to an email spoofing attack, allowing a malicious authenticated attacker to send a message from any source email address. The attack uses an HTTP POST request to a /Session URI, and interchanges the XML From and To elements.

Weakness: CWE-287

Which versions are affected by CVE-2018-3815?

It affects 1 product.

Products include Stalker Communigate Pro.

How do I fix CVE-2018-3815?

No fix has been published for CVE-2018-3815 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-2018-3815 being exploited?

There is no known exploitation of CVE-2018-3815 in the wild and no public exploit code.

Sources

Also known as GHSA-hxgx-wfcx-qv3g.