Vulnerability identifier: #VU26750

Vulnerability risk: Medium

CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-11582

CWE-ID: CWE-264

Exploitation vector: Local network

Exploit availability: No

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 bypass security restrictions.

The vulnerability exists due to the applet in tncc.jar launches a TCP server that accepts local connections on a random port and can be reached by local HTTP clients. A remote attacker can use this issue to gather information from the system or perform further interactions with the victim's system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Ivanti Connect Secure (formerly Pulse Connect Secure): All versions

Ivanti Policy Secure (formerly Pulse Policy Secure): All versions

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External links
http://git.lsd.cat/g/pulse-host-checker-rce
http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.