[Full-Disclosure] Old LS Trojan?

Scott Renna srenna at vdbmusic.com
Wed Dec 1 23:47:42 GMT 2004


LOL.  That CISSP totally rocks.

Scott Renna CISSP, GCIA, GCIH

Kevin Finisterre wrote:
> You should think a CISSP could write such a script in like 5 minutes.
> 
> 
> David S. Morgan wrote:
> 
>> Hey all,
>>
>> I am looking for an old LS trojan, with trojan being a misnomer.  
>> Essentially, the scinario is that the admin (root) has a . (dot) in 
>> his path.  The bad-user knows this, and has crafted an LS shell script 
>> (the part that I can't find) that essentially copies /sbin/sh to a 
>> hidden directory and then performs some suid majik to make the sh run 
>> as if they were root, without needing the root password.  The file 
>> then removes itself and does the real version of ls.
>>
>> Does anyone remember this one, and have the ls script anywhere?  I 
>> would like to use it in a demonstration.  I know that this has 
>> probobly been fixed in various ways, but I have "old Unixes" for just 
>> such occasions.
>>
>> Dave Morgan
>>
>> David S. Morgan CISSP, CCNP aka: captkras at earthlink.net
>>
>> "When the winds of change blow hard enough, even the most tiny object
>> can become a deadly projectile"
>>
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> 
> _______________________________________________
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