CVE-2017-5933 Weak cryptography in n/a
Remote attackers can exploit weak GCM nonce generation to obtain authentication keys and spoof data in Citrix NetScaler sessions.
- 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-2017-5933?
CVE-2017-5933 is a medium-severity vulnerability in n/a, published on 8 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Citrix NetScaler ADC and NetScaler Gateway 10.5 before Build 65.11, 11.0 before Build 69.12/69.123, and 11.1 before Build 51.21 randomly generates GCM nonces, which makes it marginally easier for remote attackers to obtain the GCM authentication key and spoof data by leveraging a reused nonce in a session and a "forbidden attack," a similar issue to CVE-2016-0270.
Weakness: CWE-200
Which versions are affected by CVE-2017-5933?
It affects 1 product.
Products include Citrix Netscaler Application Delivery Controller Firmware.
How do I fix CVE-2017-5933?
No fix has been published for CVE-2017-5933 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-5933 being exploited?
There is no known exploitation of CVE-2017-5933 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-5c4h-j88c-ggfr.