ZDI-07-077: Trend Micro ServerProtect StRpcSrv.dll Insecure Method Exposure Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-07-077.html December 17, 2007 -- CVE ID: -- Affected Vendor: Trend Micro -- Affected Products: ServerProtect v5.58 -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 5126. For further product information on the TippingPoint IPS: http://www.tippingpoint.com -- Vulnerability Details: These vulnerabilities allow attackers to execute arbitrary code on vulnerable installations of Trend Micro ServerProtect. Authentication is not required to exploit these vulnerabilities. The specific flaw exists in the SpntSvc.exe daemon, bound by default on TCP port 5168 and exposing the following DCE/RPC interface through TmRpcSrv.dll: /* opcode: 0x00, address: 0x65741030 */ error_status_t sub_65741030 ( [in] handle_t arg_1, [in] long arg_2, [in][size_is(arg_4)] byte arg_3[], [in] long arg_4, [out][size_is(arg_6)] byte arg_5[], [in] long arg_6 ); Various sub-functions from StRpcSrv.dll are exposed in this interface and allow for full file system access that can be trivially leveraged to executed arbitrary code. -- Vendor Response: Trend Micro issued an update to correct this vulnerability on July 27th, 2007. More details can be found at: http://www.trendmicro.com/ftp/documentation/readme/spnt_558_win_en_secur itypatch4_readme.txt -- Disclosure Timeline: 2007.02.01 - Vulnerability reported to vendor 2007.12.17 - Public release of advisory -- Credit: This vulnerability was discovered by Eric DETOISIEN. -- About the Zero Day Initiative (ZDI): Established by TippingPoint, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is being sent by 3Com for the sole use of the intended recipient(s) and may contain confidential, proprietary and/or privileged information. Any unauthorized review, use, disclosure and/or distribution by any recipient is prohibited. If you are not the intended recipient, please delete and/or destroy all copies of this message regardless of form and any included attachments and notify 3Com immediately by contacting the sender via reply e-mail or forwarding to 3Com at postmaster (at) 3com (dot) com. [email concealed]