NVD Vulnerability Detail

CVE-2020-13162

Summary	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.
Publication Date	June 17, 2020, 5:15 a.m.
Registration Date	Jan. 26, 2021, 11:51 a.m.
Last Update	Nov. 21, 2024, 2 p.m.

CVSS3.1 : HIGH
スコア	7.0
Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	高
攻撃に必要な特権レベル(PR)	低
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	高
完全性への影響(I)	高
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	6.9
Vector	AV:L/AC:M/Au:N/C:C/I:C/A:C
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	中
攻撃前の認証要否(Au)	不要
機密性への影響(C)	高
完全性への影響(I)	高
可用性への影響(A)	高
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r7.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r6.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r5.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r4.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r4.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r4.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r3.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r3.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r2.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r1.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r4::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r3::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r2.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r6.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r5.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r4.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r3.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r1.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r7.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r6.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r5.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r5.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r4.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r4.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r3.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r2.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r1.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r1.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:8.3:::::windows::
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:9.1:::::windows::
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:9.1:r5.0::::windows::*

Related information, measures and tools

No	URL	タグ
1	http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html	Third Party Advisory VDB Entry
2	http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.html	Third Party Advisory VDB Entry
3	http://seclists.org/fulldisclosure/2020/Jun/25	Mailing List Third Party Advisory
4	http://seclists.org/fulldisclosure/2020/Sep/15	Mailing List Third Party Advisory
5	https://kb.pulsesecure.net/?atype=sa	Vendor Advisory
6	https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503	Vendor Advisory
7	https://twitter.com/gsepcali/status/1262551597990711296	Third Party Advisory
8	https://twitter.com/gsepcali/status/1272927080909623297	Third Party Advisory
9	https://twitter.com/sepcali/status/1262551597990711296	Third Party Advisory
10	https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/	Exploit Third Party Advisory
11	http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html	Third Party Advisory VDB Entry
12	https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/	Exploit Third Party Advisory
13	https://twitter.com/sepcali/status/1262551597990711296	Third Party Advisory
14	https://twitter.com/gsepcali/status/1272927080909623297	Third Party Advisory
15	https://twitter.com/gsepcali/status/1262551597990711296	Third Party Advisory
16	https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503	Vendor Advisory
17	https://kb.pulsesecure.net/?atype=sa	Vendor Advisory
18	http://seclists.org/fulldisclosure/2020/Sep/15	Mailing List Third Party Advisory
19	http://seclists.org/fulldisclosure/2020/Jun/25	Mailing List Third Party Advisory
20	http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.html	Third Party Advisory VDB Entry

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-367	Time-of-check Time-of-use (TOCTOU) 競合状態	https://cwe.mitre.org/data/definitions/367.html

JVN Vulnerability Information

Windows 用 Pulse Secure Client におけるTime-of-check Time-of-use (TOCTOU) 競合状態の脆弱性

Title	Windows 用 Pulse Secure Client におけるTime-of-check Time-of-use (TOCTOU) 競合状態の脆弱性
Summary	Windows 用 Pulse Secure Client には、Time-of-check Time-of-use (TOCTOU) 競合状態の脆弱性が存在します。
Possible impacts	情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	June 17, 2020, midnight
Registration Date	July 22, 2020, 10:48 a.m.
Last Update	July 22, 2020, 10:48 a.m.

Affected System

パルスセキュア

Pulse Secure Desktop Client

Standalone Pulse Installer Service client

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2020-13162	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13162
National Vulnerability Database (NVD)
2	CVE-2020-13162	https://nvd.nist.gov/vuln/detail/CVE-2020-13162

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-367	https://cwe.mitre.org/data/definitions/367.html

ベンダー情報

No	Name	URL
Pulse Secure
1	New Advisories	https://kb.pulsesecure.net/?atype=sa
2	SA44503 - 2020-06	https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503

Change Log

No	Changed Details	Date of change
1	[2020年07月22日] 掲載	July 22, 2020, 10:48 a.m.

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r7.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r6.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r5.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r4.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r4.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r4.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r3.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r3.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r2.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.1:r1.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r4::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r3::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r2.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r6.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r5.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r4.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r3.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:9.0:r1.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r7.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r6.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r5.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r5.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r4.2::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r4.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r3.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r2.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r1.1::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_desktop_client:5.3:r1.0::::windows::*
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:8.3:::::windows::
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:9.1:::::windows::
cpe:2.3:a:pulsesecure:pulse_secure_installer_service:9.1:r5.0::::windows::*