Re: Trojan attacking our switches

From: Mike Hoskins (mikeat_private)
Date: Fri Mar 21 2003 - 12:21:59 PST

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    On Thu, 20 Mar 2003, Charles Polisher wrote:
    > Search of CVE and securityfocus and googling
    > did not turn up adequate information. Anyone
    > seen this beast?
    
    wrt SNMP vulnerabilities (seems relevant):
    
    http://www.cert.org/advisories/CA-2002-03.html
    
    > Telnetting into our HP Procurve 2524 switch
    > shows an ongoing attempt to brute-force the
    > SNMP community (public, of course). HP apparently
    > does not provide a method for disbling SNMP, and
    > we're going to have to visit all 93 switches
    > in person to set a strong password -- yes, it had
    > been left blank!
    
    SNMP should be setn to a VLAN/management interface.  Can you ACL the
    interface to only allow SNMP from trusted hosts?  Also, I assume you only
    allow telnet from your management network.
    
    -mrh
    
    
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