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ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions
| Reporter | Title | Published | Views | Family All 8 |
|---|---|---|---|---|
 | CVE-2016-20024 | 15 Mar 202613:35 | – | attackerkb |
 | ZKTeco ZKTime.Net 安全漏洞 | 16 Mar 202600:00 | – | cnnvd |
 | CVE-2016-20024 | 15 Mar 202613:35 | – | cve |
 | CVE-2016-20024 ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions Privilege Escalation | 15 Mar 202613:35 | – | cvelist |
 | EUVD-2016-10803 | 16 Mar 202615:30 | – | euvd |
 | CVE-2016-20024 | 16 Mar 202614:17 | – | nvd |
 | PT-2026-25664 | 15 Mar 202600:00 | – | ptsecurity |
 | CVE-2016-20024 ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions Privilege Escalation | 15 Mar 202613:35 | – | vulnrichment |
<html><body><p>ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions
Vendor: ZKTeco Inc. | Xiamen ZKTeco Biometric Identification Technology Co.,ltd
Product web page: http://www.zkteco.com
Affected version: 3.0.1.6
3.0.1.5 (160622)
3.0.1.1 (160216)
Summary: ZKTime.Net V3.0 is a new generation time attendance
management software. Meanwhile, it integrates with time attendance
and access control system. Some frequently used functions such as
attendance reports, device management and employee management can
be managed directly on the home page which providing excellent user
experience. Owing to the Pay code function, it can generate both
time attendance records and corresponding payroll in the software
and easy to merge with the most ERP and Payroll software, which can
rapidly upgrade your working efficiency. The brand new flat GUI design
and humanized structure will make your daily management more pleasant
and convenient.
Desc: ZKTime.Net suffers from an elevation of privileges vulnerability
which can be used by a simple user that can change the executable file
with a binary of choice. The vulnerability exist due to the improper
permissions, with the 'C' flag (Change) for 'Everyone' group, making the
entire directory 'ZKTimeNet3.0' and its files and sub-dirs world-writable.
Tested on: Microsoft Windows 7 Ultimate SP1 (EN)
Microsoft Windows 7 Professional SP1 (EN)
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2016-5360
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5360.php
18.07.2016
--
C:\>showacls "c:\Program Files (x86)\ZKTimeNet3.0"
c:\Program Files (x86)\ZKTimeNet3.0
Everyone Change [RWXD]
NT SERVICE\TrustedInstaller Special Access [A]
NT AUTHORITY\SYSTEM Special Access [A]
BUILTIN\Administrators Special Access [A]
BUILTIN\Users Special Access [RX]
CREATOR OWNER Special Access [A]
C:\>showacls "c:\Program Files (x86)\ZKTimeNet3.0\ZKTimeNet.exe"
c:\Program Files (x86)\ZKTimeNet3.0\ZKTimeNet.exe
Everyone Change [RWXD]
C:\Program Files (x86)>cacls ZKTimeNet3.0
C:\Program Files (x86)\ZKTimeNet3.0 Everyone:(OI)(CI)C
NT SERVICE\TrustedInstaller:(ID)F
NT SERVICE\TrustedInstaller:(CI)(IO)(ID)F
NT AUTHORITY\SYSTEM:(ID)F
NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Administrators:(OI)(CI)(IO)(ID)F
BUILTIN\Users:(ID)R
BUILTIN\Users:(OI)(CI)(IO)(ID)(special access:)
GENERIC_READ
GENERIC_EXECUTE
CREATOR OWNER:(OI)(CI)(IO)(ID)F
C:\Program Files (x86)\ZKTimeNet3.0>cacls *.exe
C:\Program Files (x86)\ZKTimeNet3.0\LanguageTranslate.exe Everyone:C
Everyone:(ID)C
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R
C:\Program Files (x86)\ZKTimeNet3.0\unins000.exe Everyone:(ID)C
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R
C:\Program Files (x86)\ZKTimeNet3.0\ZKTimeNet.DBTT.exe Everyone:C
Everyone:(ID)C
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R
C:\Program Files (x86)\ZKTimeNet3.0\ZKTimeNet.exe Everyone:C
Everyone:(ID)C
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R
C:\Program Files (x86)\ZKTimeNet3.0\ZKTimeNet.Update.exe Everyone:C
Everyone:(ID)C
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R
C:\Program Files (x86)\ZKTimeNet3.0\ZKTimeNet.ZKTime5DB.exe Everyone:C
Everyone:(ID)C
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R
</p></body></html>Data
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30 Aug 2016 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 49.3
CVSS 3.19.8
EPSS0.0003
SSVC