[Plugins-writers] loose source routing problem

From: cissper (cissper@private)
Date: Tue Mar 02 2004 - 18:54:50 PST

  • Next message: cissper: "[Plugins-writers] loose source routing problem"

    I am lost here! Almost every time when I perform a
    nessus scan I get this odd vulnerability: loose source
    routing identified.
    
    I really don’t know how that script works but I have
    to analyse if this is a false positive or not. When I
    perform a manual traceroute (UDP) to the destination
    host, I do not get all gateways listed. It looks
    similar to that (just as an example):
    
    1  helios.ee.lbl.gov (128.3.112.1)  0 ms  0 ms  0 ms
    2  lilacâdmc.Berkeley.EDU (128.32.216.1)  39 ms  19 ms
     39 ms
    3  lilacâdmc.Berkeley.EDU (128.32.216.1)  19 ms  39 ms
     19 ms
    4  ccngwânerâcc.Berkeley.EDU (128.32.136.23)  39 ms 
    40 ms  19 ms
    5  ccnânerif35.Berkeley.EDU (128.32.168.35)  39 ms  39
    ms  39 ms
    6  csgw.Berkeley.EDU (128.32.133.254)  39 ms  59 ms 
    39 ms
    7  * * *
    8  * * *
    
    
    How can the nessus plug-in reporting this
    vulnerability get through to the destination host with
    loose source routing when I can get through with ICMP
    and UDP???
    
    Can anybody explain me how this plug-in works? I just
    think it doesn’t work properly and always provides a
    false positive! In addiation, can anyone show how to
    reproduce what the script does?
    
    Your help is very much appreciated
    
    regards
    cissper
    
    loose source routing, unreliable results
    
    
    
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