ByteOS Network

▼CVE Numbering Authority (CNA)

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.

Affected Products

Vendor

n/a

Product

n/a

Versions

Affected

Problem Types

Type	CWE ID	Description
text	N/A	n/a

Type: text

CWE ID: N/A

Description: n/a

References

Hyperlink	Resource
https://kb.pulsesecure.net/?atype=sa	x_refsource_MISC
https://twitter.com/sepcali/status/1262551597990711296	x_refsource_MISC
http://seclists.org/fulldisclosure/2020/Jun/25	mailing-list x_refsource_FULLDISC
https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/	x_refsource_MISC
http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html	x_refsource_MISC
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503	x_refsource_CONFIRM
https://twitter.com/gsepcali/status/1262551597990711296	x_refsource_MISC
https://twitter.com/gsepcali/status/1272927080909623297	x_refsource_MISC
http://seclists.org/fulldisclosure/2020/Sep/15	mailing-list x_refsource_FULLDISC
http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.html	x_refsource_MISC

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

Resource:

x_refsource_MISC

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

Resource:

x_refsource_MISC

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

Resource:

mailing-list

x_refsource_FULLDISC

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

Resource:

x_refsource_MISC

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

Resource:

x_refsource_MISC

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

Resource:

x_refsource_CONFIRM

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

Resource:

x_refsource_MISC

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

Resource:

x_refsource_MISC

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

Resource:

mailing-list

x_refsource_FULLDISC

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

Resource:

x_refsource_MISC

▼Authorized Data Publishers (ADP)

1. CVE Program Container

References

Hyperlink	Resource
https://kb.pulsesecure.net/?atype=sa	x_refsource_MISC x_transferred
https://twitter.com/sepcali/status/1262551597990711296	x_refsource_MISC x_transferred
http://seclists.org/fulldisclosure/2020/Jun/25	mailing-list x_refsource_FULLDISC x_transferred
https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/	x_refsource_MISC x_transferred
http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html	x_refsource_MISC x_transferred
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503	x_refsource_CONFIRM x_transferred
https://twitter.com/gsepcali/status/1262551597990711296	x_refsource_MISC x_transferred
https://twitter.com/gsepcali/status/1272927080909623297	x_refsource_MISC x_transferred
http://seclists.org/fulldisclosure/2020/Sep/15	mailing-list x_refsource_FULLDISC x_transferred
http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.html	x_refsource_MISC x_transferred

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

Resource:

x_refsource_MISC

x_transferred

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

Resource:

x_refsource_MISC

x_transferred

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

Resource:

mailing-list

x_refsource_FULLDISC

x_transferred

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

Resource:

x_refsource_MISC

x_transferred

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

Resource:

x_refsource_MISC

x_transferred

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

Resource:

x_refsource_CONFIRM

x_transferred

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

Resource:

x_refsource_MISC

x_transferred

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

Resource:

x_refsource_MISC

x_transferred

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

Resource:

mailing-list

x_refsource_FULLDISC

x_transferred

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

Resource:

x_refsource_MISC

x_transferred

2. CISA ADP Vulnrichment

Problem Types

Type	CWE ID	Description
CWE	CWE-367	CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Type: CWE

CWE ID: CWE-367

Description: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Metrics

Version	Base score	Base severity	Vector
3.1	7.0	HIGH	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Version: 3.1

Base score: 7.0

Base severity: HIGH

Vector:

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

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Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

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References