CVE-2019-12991: Citrix SD-WAN and NetScaler Command Injection Vulnerability

CVE-2019-12991 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-03-25

Citrix SD-WAN and NetScaler SD-WAN appliances are vulnerable to authenticated OS command injection due to improper input validation. An authenticated attacker can exploit this vulnerability to execute arbitrary commands on the underlying operating system.

Technologies: Cisco SD-WAN, Citrix NetScaler. Vendors: Cisco, Citrix.

Quick answers

Is CVE-2019-12991 exploited in the wild?
Yes. CVE-2019-12991 is known to be exploited in the wild, first recorded on 25 March 2022. Treat it as urgent.
How severe is CVE-2019-12991?
Critical severity, with a CVSS score of 8.8, published 25 March 2022.
Which products and versions are affected?
Citrix SD-WAN 10.2.x before 10.2.3; Citrix NetScaler SD-WAN 10.0.x before 10.0.8.
Is there a fix for CVE-2019-12991?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-12991 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2019-12991?
Check whether you run Cisco SD-WAN or Citrix NetScaler. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Citrix SD-WAN 10.2.x before 10.2.3
  • Citrix NetScaler SD-WAN 10.0.x before 10.0.8

Timeline

  • 2019-07-16: disclosed: NVD Published Date
  • 2022-03-25: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

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