CVE-2019-11539
Published: November 3, 2021
Official Description
Ivanti Pulse Connect Secure and Policy Secure allows an authenticated attacker from the admin web interface to inject and execute commands.
CISA KEV Advisory
Ivanti Pulse Connect Secure and Policy Secure Command Injection Vulnerability
Ivanti Pulse Connect Secure and Policy Secure allows an authenticated attacker from the admin web interface to inject and execute commands.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in Ivanti Pulse Connect Secure and Policy Secure allows an authenticated administrator to inject and execute commands through the web interface. With an EPSS score of 0.93902, the likelihood of exploitation is very high, and its inclusion in CISA's KEV confirms active exploitation. This makes it an urgent concern.
Active exploitation of this vulnerability has been observed in the wild, as indicated by its 'in_the_wild' exploit status and presence in CISA's KEV. An attacker requires prior authentication to the admin web interface.
Administrators should apply the latest security updates and patches for Ivanti Pulse Connect Secure and Policy Secure. Restricting access to the administrative interface to trusted networks and users is also recommended.
Technical Analysis
CVE-2019-11539 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2019-11539 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-11539 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1