CVE-2021-22899: Ivanti Pulse Connect Secure Command Injection Vulnerability

Vulnerability summary

CVE-2021-22899 is a high (CVSS 8.8) Command Injection vulnerability in Ivanti Pulse Connect Secure. It is known to be exploited: CISA lists it, first on 03-11-2021. EPSS estimates a 22.91% chance of exploitation in the next 30 days, higher than 97.7% of scored vulnerabilities.

Timeline

1. 27-05-2021
   PublishedVulnerability first disclosed.
2. 03-11-2021
   Added to CISA KEVIvanti Pulse Connect Secure Command Injection Vulnerability
3. 03-05-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

A command injection vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to perform remote code execution via Windows Resource Profiles Feature

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.