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GEOVAP Reliance 4 Control Server Unquoted Service Path Elevation Of Privilege

2015-12-07 12:50
Title: GEOVAP Reliance 4 Control Server Unquoted Service Path Elevation Of Privilege
Advisory ID: ZSL-2015-5285
Type: Local
Impact: Privilege Escalation
Risk: (2/5)
Release Date: 07.12.2015
Summary
Reliance is a professional SCADA/HMI system designed for thevisualization and control of industrial processes and for building automation.
Description
The application suffers from an unquoted search path issue impacting theservice 'RelianceOpcDaWrapper' for Windows deployed as part of Reliance 4 SCADA/HMIsystem installer including Reliance OPC Server. This could potentially allow anauthorized but non-privileged local user to execute arbitrary code with elevatedprivileges on the system. A successful attempt would require the local user to beable to insert their code in the system root path undetected by the OS or othersecurity applications where it could potentially be executed during applicationstartup or reboot. If successful, the local user’s code would execute with theelevated privileges of the application.
Vendor
GEOVAP, spol. s r.o. - http://www.reliance-scada.com
Affected Version
4.7.1 (Revision 25172)
Tested On
Microsoft Windows 7 Professional SP1 (EN)
Microsoft Windows 7 Ultimate SP1 (EN)
Vendor Status
[14.10.2015] Vulnerability discovered.
[19.10.2015] Vendor contacted.
[19.10.2015] Vendor responds asking more details.
[19.10.2015] Sent details to the vendor.
[19.10.2015] Vendor forwards report to responsible person.
[20.10.2015] Vendor confirms the issue creating a fix that will be part of next pre-release of Reliance.
[20.10.2015] Asked vendor for patch release date.
[21.10.2015] Vendor promises new pre-release version within the next 3 weeks followed by the release of the official version.
[15.11.2015] Asked vendor for status update.
[15.11.2015] Vendor informs about scheduled patch release date.
[23.11.2015] Vendor releases pre-release version 4.7.2 (rev 26766) only to registered customers to address this issue.
[23.11.2015] ZSL verifies fix.
[23.11.2015] Vendor informs official stable (public) release planned for December.
[07.12.2015] Public security advisory released.
PoC
reliance_eop.txt
Credits
Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>
References
[1] http://www.reliance-scada.com/files-to-download/documentation/reliance4/reliancehistory_ENU.html
Changelog
[07.12.2015] - Initial release
Contact
Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk


Source: php.5825-5102-LSZ/seitilibarenluv/ne/km.ecneicsorez.www

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