RE: Long path exploit on NTFS

From: David Sexton (dave.sextonat_private)
Date: Tue Feb 05 2002 - 01:14:06 PST

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    Err.. I beg to differ:
    
    
    ----------------
    
    SWEEP virus detection utility
    Version 3.54, Monday, February 04, 2002
    Includes detection for 71830 viruses, trojans and worms
    Copyright © 1989, 2001, Sophos Plc, www.sophos.com
    
    Info:	Immediate job started by xxxx at 8:57  on Tuesday, February 05, 2002
    
    Items to be swept:
    	"All Master Boot Sectors"
    	Drive C: Sector 0
    	c:\temp\*.* and all subfolders
    
    Scanning options:
    	Quick mode,
    	excluding off-line files
    
    Sweeping:
    	Disk 80 Cylinder 0 Head 0 Sector 1
    	Drive C: Sector 0
    	
    C:\TEMP\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\12
    34567890\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\1
    234567890\1234567890\1234567890\1234567890\1234567890\1234567890\123456789\1
    234567890...\EICAR.TXT
    Virus:	'EICAR-AV-Test' detected in
    C:\TEMP\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\12345
    6~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\
    123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\EICAR.TXT
    	No action taken 
    
    	
    C:\TEMP\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\12
    34567890\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\1
    234567890\1234567890\1234567890\1234567890\1234567890\1234567890\123456789\1
    234567890...\EICAR2.COM
    Virus:	'EICAR-AV-Test' detected in
    C:\TEMP\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\12345
    6~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\
    123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\EICAR2.COM
    	No action taken 
    
    	
    C:\TEMP\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\12
    34567890\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\1
    234567890\1234567890\1234567890\1234567890\1234567890\1234567890\123456789\t
    emp\1234567890...\EICAR.TXT
    Virus:	'EICAR-AV-Test' detected in
    C:\TEMP\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\12345
    6~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\
    123456~1\123456~1\123456~1\123456~1\temp\123456~1\123456~1\123456~1\123456~1
    \123456~1...\EICAR.TXT
    	No action taken 
    
    	
    C:\TEMP\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\12
    34567890\1234567890\1234567890\1234567890\1234567890\1234567890\1234567890\1
    234567890\1234567890\1234567890\1234567890\1234567890\1234567890\123456789\t
    emp\1234567890...\EICAR3.COM
    Virus:	'EICAR-AV-Test' detected in
    C:\TEMP\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\12345
    6~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\123456~1\
    123456~1\123456~1\123456~1\123456~1\temp\123456~1\123456~1\123456~1\123456~1
    \123456~1...\EICAR3.COM
    	No action taken 
    
    Info:	Immediate job completed at 8:57  on Tuesday, February 05, 2002
    	11 items swept, 4 viruses detected, 0 errors
    
    -------
    
    	Sophos seems to truncate the paths for the sake of the report, but
    they are long (the second one exceeding 256 characters even when using the
    '~' notation.
    	Those eicar files are still there from when I originally tested
    (with 3.53 [January's update]). Obviously explorer was unable to delete
    them.
    
    	The platform tested was Win2000 SP2 (before and after the recent
    security roll-up patch). I have not tried NT4.
    
    	Regards,
    
    Dave
    
    > -----Original Message-----
    > From:	Frank Heyne [SMTP:fhat_private-dresden.de]
    > Sent:	Monday, February 04, 2002 7:15 PM
    > To:	bugtraqat_private; hans.somersat_private
    > Subject:	Re: Long path exploit on NTFS
    > 
    > On 4 Feb 2002, at 10:26, Hans Somers wrote:
    > 
    > > Not Vunerable:
    > > --------------
    > > *1  					
    > >  Sophos Anti-Virus v3.53
    > 
    > This is not true.
    > 
    > According to my own tests, Sophos Anti-Virus v3.53
    > is unable to find virii in deeply nested NTFS subdirectories on NT 4.
    > 
    > 
    > 
    > Frank Heyne
    > 
    
    
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