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Re: AIX SNMP Defaults
From: troy () AUSTIN IBM COM (Troy Bollinger)
Date: Mon, 21 Feb 2000 16:14:42 -0600

Quoting Michal Zalewski (lcamtuf () DIONE IDS PL):
On Tue, 15 Feb 2000, harikiri wrote:

It appears that on the above releases of AIX, the SNMP daemon is
enabled by default and two community names are enabled with read/write
privileges. The community names are "private" and "system", but are
only allowed from localhost connections. Nevertheless, a local user
may install an SNMP client, and modify sensitive variables.

SNMP requests with no authentication except for source-IP comparsion, are

All recent versions of AIX discard packets with a source address of
loopback when the packet comes in on an external interface.  The
following APARs have been available for over 2 years:

   Abstract:   SECURITY: discard loopback packets on external interfaces
   4.1.x APAR: IX71366
   4.2.x APAR: IX71405
   4.3.x APAR: included in 4.3.0 initial release

Troy Bollinger                            troy () austin ibm com
AIX Security Development        security-alert () austin ibm com
PGP keyid: 1024/0xB7783129 Troy's opinions are not IBM policy

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