CVE-2020-13162
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.8% in the next 30 days (EPSS).
- Severity: 7.0 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.8% · EPSS, next 30 days
- Weakness
- CWE-367
- Record status
- Modified
Affected
- Pulsesecure Pulse Secure Desktop Client 5.3
- Pulsesecure Pulse Secure Desktop Client 9.0
- Pulsesecure Pulse Secure Desktop Client 9.1
- Pulsesecure Pulse Secure Installer Service 8.3
- Pulsesecure Pulse Secure Installer Service 9.1
Attack profile CVSS 3.1 · 7.0
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-13162.md and follow it. Check whether this project is affected by CVE-2020-13162. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://kb.pulsesecure.net/?atype=sa
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503
- https://kb.pulsesecure.net/?atype=sa
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503
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/