CVE-2020-13162 — Time-of-check Time-of-use (TOCTOU) Race Condition in Pulse Secure Desktop Client

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition3 documents3 sources
Severity
7.0HIGHNVD
EPSS
0.3%
top 42.67%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Pulsesecure Pulse Secure Desktop ClientPulsesecure Pulse Secure Installer Service
Timeline
PublishedJun 16
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages2 packages

🔴Vulnerability Details

2
GHSA
GHSA-jc87-47xg-wmhr: A time-of-check time-of-use vulnerability in PulseSecureService↗2022-05-24
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CVEList
CVE-2020-13162: A time-of-check time-of-use vulnerability in PulseSecureService↗2020-06-16
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CVE-2020-13162 — HIGH severity | cvebase