CVE-2019-12989: Citrix SD-WAN and NetScaler SQL Injection Vulnerability

Vulnerability summary

CVE-2019-12989 is a critical (CVSS 9.8) SQL Injection vulnerability in Citrix SD-WAN and NetScaler. It is known to be exploited: CISA lists it, first on 25-03-2022. EPSS estimates a 94.88% chance of exploitation in the next 30 days, higher than 99.8% of scored vulnerabilities. 3 public exploits are recorded.

Timeline

1. 16-07-2019
   PublishedVulnerability first disclosed.
2. 25-03-2022
   Added to CISA KEVCitrix SD-WAN and NetScaler SQL Injection Vulnerability
3. 15-04-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 allow SQL Injection.

• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.