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Bug #23373 Possible security vulnerability: bindshell found running
Submitted: 2003-04-27 12:03 UTC Modified: 2003-04-27 14:23 UTC
From: dyls at dylansmith dot co dot im Assigned:
Status: Not a bug Package: Unknown/Other Function
PHP Version: 4.3.1 OS: Linux 2.4.19
Private report: No CVE-ID: None
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From: dyls at dylansmith dot co dot im
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 [2003-04-27 12:03 UTC] dyls at dylansmith dot co dot im 
I didn't witness this actually in progress - it happened a 
short while before I logged on. 
 
I have a PHP news site running ThatWare. It looks like an 
attacker managed to get a file /tmp/bindshell uploaded and 
executed. The attacker was trying to exploit the ptrace() 
vulnerability (which I have implemented a workaround to 
prevent, fortunately). I can't find anything suspicious in 
the HTTP logs, but bindshell owned by apache with the name 
in the process table 'th1s iz my 3l33t backdoor' was 
running on port 1234/tcp, and its CWD was set to the 
virtual host of the PHP news site. 
 
I will continue to look for details on this and update the 
bug report if I find anything significant.

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 [2003-04-27 12:12 UTC] rasmus@php.net 
What makes you think that this isn't a ThatWare-specific issue?
 [2003-04-27 12:33 UTC] magnus@php.net 
After a quick search on google I found these results: 
http://www.securityfocus.com/archive/1/301811/2002-11-25/2002-12-01/0 
http://packetstormsecurity.nl/0009-exploits/thatware.txt 
http://www.securitytracker.com/alerts/2002/Dec/1005733.html 
 
which probably explains how someone managed exploit your 
machine. Patches are also included with the reports for 
these issues, there are several. 
 
If you find proof that it isn't related to ThatWare, you 
can open the report again.
 [2003-04-27 14:23 UTC] dyls at dylansmith dot co dot im 
Mea culpa. Further examination of the logs showed the 
exact problem. Good job I had ptrace patched, really.
 
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