Vulnerability Report

CVE-2020-13162

Title: Pulsesecure Pulse Secure Desktop Client Path Traversal / LFI

Arbitrary File Access

Proof Of Concept

PoC Available for CVE-2020-13162

CWE Category CWE-367
Published Date Jun 16, 2020
Modified Date Jun 17, 2026
Exploit Status Available
Score 7.0 CVSS v3.1
Exploit Probability (EPSS)
0.79%

Vulnerability Summary

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.

Impacted Vendors

P
pulsesecure 2

Reference Links

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/
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.0
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.0
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.9
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:M/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-13162 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/redtimmy/tu-TOCTOU-kaiu-TOCMEU-CVE-2020-13162-
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.