CVE-2017-17543 Weak cryptography in FortiClient SSLVPN Client for Linux

High 7.5 Published Updated

Attackers can decrypt stored VPN credentials due to weak encryption, potentially leading to account takeover.

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-2017-17543?

CVE-2017-17543 is a high-severity vulnerability in Fortinet Forticlient, published on 26 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Users' VPN authentication credentials are unsafely encrypted in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for Mac OSX 5.6.0 and below versions and FortiClient SSLVPN Client for Linux 4.4.2335 and below versions, due to the use of a static encryption key and weak encryption algorithms.

Weakness: CWE-326

Which versions are affected by CVE-2017-17543?

It affects 2 products.

Products include Fortinet Forticlient, Fortinet Forticlient Sslvpn Client.

How do I fix CVE-2017-17543?

No fix has been published for CVE-2017-17543 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-17543 being exploited?

There is no known exploitation of CVE-2017-17543 in the wild and no public exploit code.

All Fortinet Forticlient vulnerabilities

Sources

Also known as GHSA-94g8-mrxq-q59c.

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