CVE-2020-13162

Description

A time-of-check time-of-use vulnerability in PulseSecureService.exe in Pulse Secure Client versions prior to 9.1.6 down to 5.3 R70 for Windows (which runs as NT AUTHORITY/SYSTEM) allows unprivileged users to run a Microsoft Installer executable with elevated privileges.

References

https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/

https://twitter.com/sepcali/status/1262551597990711296

https://twitter.com/gsepcali/status/1272927080909623297

https://twitter.com/gsepcali/status/1262551597990711296

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503

https://kb.pulsesecure.net/?atype=sa

http://seclists.org/fulldisclosure/2020/Sep/15

http://seclists.org/fulldisclosure/2020/Jun/25

http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.html

http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3