GE Fanuc Proficy Information Portal 2.6 Arbitrary File Upload and Execution

2008-01-29 / 2008-01-30
Credit: Eyal Udassin
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-Other


CVSS Base Score: 7.5/10
Impact Subscore: 6.4/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

Background ----------------- GE-Fanuc's Proficy Information Portal 2.6 is a web based reporting application for the SCADA environment. As such it will usually be installed in a buffer zone between the SCADA and the corporate network, which makes it a very sensitive application as it can reach both networks. Description ---------------- Any authenticated user can use the "Add WebSource" option to upload any file (including asp) to the server, to the main virtual directory where it can be launched by simply requesting it with a web browser. This vulnerability exists due to a faulty Java RMI call which is associated with the "Add WebSource" which allows the user to set the name and path of where the file should be placed, and another parameter is a base64 encoded content for the file itself. Impact ---------- An authenticated attacker can compromise the server running Proficy Information Portal, enabling him to progress to the control/process network. Affected Versions ------------------------- Proficy Information Portal 2.6 Previous versions may be vulnerable, as they were not tested. Workaround/Fix ----------------------- Vendor fix will be available by Feb 15th. A possible workaround is to remove the write permission of the IIS user from the Proficy directory. Additional Information ------------------------------- For additional information please contact us at info (at) c4-security (dot) com. [email concealed] Note that we will respond only to verified utility personnel and governmental agencies. The CVE identifier assigned to this vulnerability by CERT is CVE-2008-0175 Credit -------- This vulnerability was discovered and exploited by Eyal Udassin of C4. Regards, Eyal Udassin - C4 (Formerly Swift Coders) 33 Jabotinsky St. The Twin Towers #1, Ramat Gan, Israel eyal.udassin (at) c4-security (dot) com [email concealed] / www.c4-security.com <http://www.c4-security.com/> +972-547-684989


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