[NEWS] Legato NetWorker Log File Vulnerability

From: support@securiteam.com
Date: 01/16/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Wed, 16 Jan 2002 21:03:32 +0100 (CET)

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  Legato NetWorker Log File Vulnerability
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SUMMARY

 <http://portal1.legato.com/products/networker/> Legato NetWorker is a
data storage solution for enterprise environments. A security
vulnerability in the product allows a local attacker to compromise the
application's username and password.

DETAILS

Vulnerable systems:
NetWorker version 6.1

Immune systems:
NetWorker version 6.1.1

The following scenario will illustrate the problem:
If Legato NetWorker is set to have one of its drives as an NDMP for use by
NetApp, whenever a backup is started NetApp will store inside the
/nsr/logs/daemon.log file all the current information. This includes
sensitive information such as the username and password (in clear text)
for the NetApp server. This username is usually root, or root equivalent
user.

Since any one can read this file, anyone with local user access would
potentially be able to elevate his privileges.

Example log file:
01/08/02 10:20:40 nsrd: savegroup info: starting netapp (with 1 client(s))
     application information: HIST=y;
                  auth index: netapp;
       auth index name space: backup, 1;
                  auth level: full;
                   auth mode: save;
                 auth server: server;
                 auth ssname: /vol/vol0;
            auth ssname long: /vol/vol0;
                 auth sstime: 10xxxxxx;
          auth sstime 64-bit: 10xxxxx;
                   client id: \
xxxxxxxxxxxxx;
                      groups: netapp;
          hard session limit: 1;
                    hostname: server;
                      locale: C;
                        ndmp: Yes;
                    password: password;
                 remote user: root;
         store index entries: Yes;
                 volume pool: netapp;

Solution:
A newer version of NetWorker solves this problem.

Workaround:
Manually change the permissions of the /nsr/logs directory to 0700.

ADDITIONAL INFORMATION

The information has been provided by <mailto:vsira@hotmail.com> Venkatesh
babu Sira and <mailto:wf227@yahoo.de> Wolfgang Fischer.

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