Mango Automation 2.6.0 User Enumeration Weakness

Title: Mango Automation 2.6.0 User Enumeration Weakness
Advisory ID: ZSL-2015-5256
Type: Local/Remote
Impact: Exposure of sensitive information
Risk: (1/5)
Release Date: 26.09.2015
Summary
Mango Automation is a flexible SCADA, HMI And Automation software application that allows you to view, log, graph, animate, alarm, and report on data from sensors, equipment, PLCs, databases, webpages, etc. It is easy, affordable, and open source.
Description
The weakness is caused due to the 'login.htm' script and how it verifies provided credentials. Attacker can use this weakness to enumerate valid users on the affected node.
Vendor
Infinite Automation Systems Inc. - http://www.infiniteautomation.com
Affected Version
2.5.2 and 2.6.0 beta (build 327)
Tested On
Microsoft Windows 7 Professional SP1 (EN) 32/64bit
Microsoft Windows 7 Ultimate SP1 (EN) 32/64bit
Jetty(9.2.2.v20140723)
Java(TM) SE Runtime Environment (build 1.8.0_51-b16)
Java HotSpot(TM) Client VM (build 25.51-b03, mixed mode)
Vendor Status
[20.08.2015] Vulnerability discovered.
[25.08.2015] Vendor contacted.
[25.08.2015] Vendor responds giving support e-mail to send details to.
[25.08.2015] Details sent to the support contact.
[27.08.2015] Asked vendor for status update.
[12.09.2015] No reply from the vendor.
[13.09.2015] Asked vendor for status update.
[25.09.2015] No reply from the vendor.
[26.09.2015] Public security advisory released.
[20.10.2015] Vendor releases version 2.6.0 build 430 to address these issues.
PoC
mango_userenum.txt
Credits
Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>
References
[1] https://www.exploit-db.com/exploits/38338/
[2] https://packetstormsecurity.com/files/133726
[3] https://cxsecurity.com/issue/WLB-2015090185
[4] https://exchange.xforce.ibmcloud.com/vulnerabilities/106937
[5] http://infiniteautomation.com/forum/topic/1995/mango-security-testing
[6] http://infiniteautomation.com/index.php/what-s-new/entry/what-s-new-in-mango-automation-2-6-0-released-october-20th-2016
[7] http://infiniteautomation.com/forum/topic/1997/mango-automation-2-6-released
[8] https://ics-cert.us-cert.gov/advisories/ICSA-15-300-02A
[9] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7902
[10] https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7902
[11] http://www.cnnvd.org.cn/vulnerability/show/cv_id/2015100682
[12] https://www.auscert.org.au/render.html?it=27342
Changelog
[26.09.2015] - Initial release
[07.10.2015] - Added reference [1], [2], [3] and [4]
[21.10.2015] - Added vendor status and reference [5], [6] and [7]
[29.10.2015] - Added reference [8], [9], [10], [11] and [12]
Contact
Zero Science Lab

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