#VU27039 OS Command Injection in Ivanti Connect Secure (formerly Pulse Connect Secure) and Ivanti Policy Secure (formerly Pulse Policy Secure) - CVE-2019-11539

Vulnerability identifier: #VU27039

Vulnerability risk: Medium

CVSSv4.0: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2019-11539

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Ivanti Connect Secure (formerly Pulse Connect Secure)
Server applications / Remote access servers, VPN
Ivanti Policy Secure (formerly Pulse Policy Secure)
Server applications / Remote access servers, VPN

Vendor: Ivanti

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in admin web interface of Pulse Connect Secure and Pulse Policy Secure. A remote authenticated user can execute arbitrary OS commands.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Ivanti Connect Secure (formerly Pulse Connect Secure): 8.1R1.0 - 9.0R3.2

Ivanti Policy Secure (formerly Pulse Policy Secure): 5.1R1.0 - 9.0R3.1

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External links
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101/
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0010

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.