SNMPv3 Authentication Bypass Vulnerability in snmpd(1M)

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SNMPv3 Authentication Bypass Vulnerability in snmpd(1M)

1. Impact

A security vulnerability in the System Management Agent (SMA) SNMP daemon (snmpd(1M)) that shipped with Solaris may allow a local or remote unprivileged user to access unauthorized information.

This issue is described in the following document:


2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform:

• Solaris 10 without patch 120272-21
  
• OpenSolaris based upon builds snv_01 or later

x86 Platform:

• Solaris 10 without patch 120273-23
• OpenSolaris based upon builds snv_01 or later

Notes:

1. Solaris 8 and Solaris 9 do not ship with the Net-SNMP software and thus are not impacted by this issue.

2. The Net-SNMP software was not bundled with Solaris prior to Solaris10. However, customers who have built and/or installed a vulnerable version of Net-SNMP on any version of Solaris are at risk. (See the Net-SNMP web site to download the latest version of Net-SNMP which addresses this issue).

3. The Solaris 10 patches which address this vulnerability do not increment the version of Net-SNMP. The version of Net-SNMP supplied with the patches will still be reported as 5.0.9.

4. This issue only affects systems which have the SUNWsmagt package installed. To determine if the SUNWsmagt package is installed on the system, the following command can be used:

$ pkginfo -l SUNWsmagt
PKGINST: SUNWsmagt
NAME: System Management Agent files and libraries
CATEGORY: system
VERSION: 1.0,REV=2005.01.08.05.16

5. Only OpenSolaris installations including the affected binary "/usr/sfw/lib/libnetsnmp.so.5.0.9" are affected by this issue.

6. OpenSolaris distributions may include additional bug fixes above and beyond the build from which it was derived. The base build can be derived as follows:

$ uname -a
SunOS  phys-node-1 5.11 snv_86 i86pc i386 i86pc

3. Symptoms

There are no predictable symptoms that would indicate this issue has being exploited to gain access to unauthorized information.

4. Workaround

There is no workaround for this issue. Please see the Resolution section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform:

• Solaris 10 with patch 120272-21 or later
  
• OpenSolaris based upon builds snv_93 or later

x86 Platform:

• Solaris 10 with patch 120273-23 or later
  
• OpenSolaris based upon builds snv_93 or later

For more information on Security Sun Alerts, see Technical Instruction ID 213557.

This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements.

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