VulnerabilityAnalyzed
CVE-2019-12991
Citrix SD-WAN and NetScaler Command Injection Vulnerability
KEVHIGH 8.8EPSS 74.1%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 5 of 6).
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 74.05% probability · 99th percentile
- CISA KEV
- Listed 25 March 2022 · due 15 April 2022
- Weakness
- CWE-78
- Affected
- citrix/netscaler sd-wan · citrix/sd-wan
- Source
- cve@mitre.org
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-12991
References
- http://packetstormsecurity.com/files/153638/Citrix-SD-WAN-Appliance-10.2.2-Authentication-Bypass-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/109133Broken Link, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX251987Vendor Advisory
- https://www.tenable.com/security/research/tra-2019-32Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/153638/Citrix-SD-WAN-Appliance-10.2.2-Authentication-Bypass-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/109133Broken Link, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX251987Vendor Advisory
- https://www.tenable.com/security/research/tra-2019-32Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-12991US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.