CVE-2017-5933

Name: CVE-2017-5933
Creator: NVD / NIST
Published: 2017-02-08T16:59:00.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.18%

Last modified Jun 17, 2026

CVE-2017-5933 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.18% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

3.18%

86.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Citrix	Netscaler Application Delivery Controller Firmware	<= 10.5.65.11
Citrix	Netscaler Application Delivery Controller Firmware	<= 11.0.69.12
Citrix	Netscaler Application Delivery Controller Firmware	<= 11.1.51.21

References

http://www.securityfocus.com/bid/96151Third Party Advisory, VDB Entry
https://github.com/nonce-disrespect/nonce-disrespectThird Party Advisory
https://support.citrix.com/article/CTX220329Vendor Advisory
http://www.securityfocus.com/bid/96151Third Party Advisory, VDB Entry
https://github.com/nonce-disrespect/nonce-disrespectThird Party Advisory
https://support.citrix.com/article/CTX220329Vendor Advisory

Timeline

Published: Feb 8, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-5933?

How severe is CVE-2017-5933?

Severity scoring for CVE-2017-5933 is pending analysis. The EPSS model estimates a 3.18% probability of exploitation in the next 30 days.

How do I fix CVE-2017-5933?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-5933?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST