*** Kent Fritz wrote:

> More information:: In response to the probe "0x00, 0x00,0x27, 0x29",
> the port in question returns "0x00, 0x00", which is less than the
> minimum of 4 bytes requested by the script.  If I run the script
> alone: # openvas-nasl -X -t <target> -d gb_sap_router_detect.nasl
> And, on the target, I run:
> $ ncat -kl 3299
> Then the script times out after 5 seconds.  But if I press  "enter"
> on ncat when probed, the script hangs forever.  I think this is
> expected.
> 
> When running from OpenVAS 7/Greenbone using the "Full and fast"
> configuration, the TCP connection is terminated after 120 seconds.
> I don't know why this times out -- the "plugins_timeout" is 320
> seconds.
> 
> When running on OpenVAS 8, it never times out, and needs to be stopped 
> manually.
> 
> I have tcpdumps of both scans, but it doesn't tell much beyond the
> above.  I'll see if I can find a simple way to reproduce this.

Does it help to change:

buf = recv( socket:soc, min:4, length:4 );

to

buf = recv( socket:soc, length:4 );
if( strlen( buf ) < 4 ) exit( 0 );

?

Micha

-- 
Michael Meyer                  OpenPGP Key: 0xAF069E9152A6EFA6 
http://www.greenbone.net/
Greenbone Networks GmbH, Neuer Graben 17, 49074 Osnabrück | AG
Osnabrück, HR B 202460
Geschäftsführer: Lukas Grunwald, Dr. Jan-Oliver Wagner
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