CVE-2017-12361 Weak cryptography in Cisco Jabber

Medium 4.0 Published 30 Nov 2017 Updated 5 Aug 2024

An attacker can decrypt secure communications by exploiting weak random number generation in Cisco Jabber for Windows.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-12361?

CVE-2017-12361 is a medium-severity vulnerability in Cisco Jabber, published on 30 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in Cisco Jabber for Windows could allow an unauthenticated, local attacker to access sensitive communications made by the Jabber client. An attacker could exploit this vulnerability to gain information to conduct additional attacks. The vulnerability is due to the way Cisco Jabber for Windows handles random number generation for file folders. An attacker could exploit the vulnerability by fixing the random number data used to establish Secure Sockets Layer (SSL) connections between clients. An exploit could allow the attacker to decrypt secure communications made by the Cisco Jabber for Windows client. Cisco Bug IDs: CSCve44806.

Weakness: CWE-330, CWE-200

Which versions are affected by CVE-2017-12361?

It affects 1 product.

Products include Cisco Jabber.

How do I fix CVE-2017-12361?

No fix has been published for CVE-2017-12361 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-12361 being exploited?

There is no known exploitation of CVE-2017-12361 in the wild and no public exploit code.

Sources

Also known as GHSA-4998-58vc-p397.