Vulnerability Details CVE-2020-13162
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 56.8%
CVSS Severity
CVSS v3 Score 7.0
CVSS v2 Score 6.9
References
- http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html
- http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.html
- http://seclists.org/fulldisclosure/2020/Jun/25
- http://seclists.org/fulldisclosure/2020/Sep/15
- https://kb.pulsesecure.net/?atype=sa
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503
- https://twitter.com/gsepcali/status/1262551597990711296
- https://twitter.com/gsepcali/status/1272927080909623297
- https://twitter.com/sepcali/status/1262551597990711296
- https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/
- http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html
- http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.html
- http://seclists.org/fulldisclosure/2020/Jun/25
- http://seclists.org/fulldisclosure/2020/Sep/15
- https://kb.pulsesecure.net/?atype=sa
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503
- https://twitter.com/gsepcali/status/1262551597990711296
- https://twitter.com/gsepcali/status/1272927080909623297
- https://twitter.com/sepcali/status/1262551597990711296
- https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/
Products affected by CVE-2020-13162
-
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3
-
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0
-
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1
-
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:8.3
-
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:9.1