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| Subject: | Microsoft Internet Explorer - Crash on adding sites to restricted zone (05/28/2005) |
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| Date: | Sat, 28 May 2005 16:24:20 +0200 |
Microsoft Internet Explorer - Crash on adding sites to restricted zone (05/28/2005)
Description: There is a bug in Microsoft Internet Explorer, which causes a crash in URLMON.DLL. - EventType : BEX - P1 : IEXPLORE.EXE - P2 : 6.0.2900.2180 - P3 : 41107b81 - P4 : urlmon.dll - P5 : 6.0.2900.2627 - P6 : 422fff74 - P7 : 0005bf61 - P8 : c0000409 - P9 : 00000000 The bug occurs, because Microsoft Internet Explorer can't handle adding of special-formed URLs to restricted zone. To get a crash, the URL must begin with numbers and dots (like a correct IP address), but it mustn't end like a IP address.
Affected software: Microsoft Internet Explorer
Workaround: Don't add such URLs to any zone.
Proof-of-Concept exploit: Add to restricted zone: 4.3.2.1btf-errorreporting.btf.de
Date of discovery: 20. April 2005
Tested software: Microsoft Internet Explorer 6 SP2 (6.0.2900.2180.xpsp_sp2_gdr.050301-1519) on a fully patched Windows XP SP2 system.
DLL versions: MSHTML.DLL: 6.00.2900.2627 (xpsp_sp2_gdr.050309-1648) BROWSEUI.DLL: 6.00.2900.2627 (xpsp_sp2_gdr.050309-1648) SHDOCVW.DLL: 6.00.2900.2627 (xpsp_sp2_gdr.050309-1648) SHLWAPI.DLL: 6.00.2900.2627 (xpsp_sp2_gdr.050309-1648) URLMON.DLL: 6.00.2900.2627 (xpsp_sp2_gdr.050309-1648) WININET.DLL: 6.00.2900.2627 (xpsp_sp2_gdr.050309-1648)
Regards,
Benjamin Tobias Franz Germany
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