Bug Id
6913788, 6913833

Product
OpenSolaris

Date of Resolved Release
26-Jan-2010

A Security Vulnerability Exists if an OpenSolaris System was Joined to a Windows Domain Using kclient(1M) or smbadm(1M)

1. Impact

An insecure default configuration security vulnerability exists in the way the Kerberos client utility (kclient(1M)) and the CIFS configuration utility (smbadm(1M)) join a Windows Active Directory domain.

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• OpenSolaris based upon builds snv_77 through snv_131 for smbadm(1M)
• OpenSolaris based upon builds snv_91 through snv_131 for kclient(1M)

x86 Platform

• OpenSolaris based upon builds snv_77 through snv_131 for smbadm(1M)
• OpenSolaris based upon builds snv_91 through snv_131 for kclient(1M)

Note: Solaris 8, 9, and 10 are not impacted by this issue.

OpenSolaris distributions may include additional bug fixes above and beyond the build from which it was derived. To determine the base build of OpenSolaris, the following command can be used:

$ uname -v
snv_131

3. Symptoms

There are no predictable symptoms that would indicate the described issue has occurred.

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

• OpenSolaris based upon builds snv_132 or later for smbadm(1M) and kclient(1M)

x86 Platform

• OpenSolaris based upon builds snv_132 or later for smbadm(1M) and kclient(1M)

Note: kclient(1M) or smbadm(1M) must be rerun on the client after updating to snv_132 or later in order to generate sufficiently random password/keys for the computer account in Windows Active Directory.

For kclient(1M), an example would be:

$ kclient -T ms_ad

For smbadm(1M), an example would be:

$ smbadm join -u administrator EXAMPLE.COM

For more information on Security Sun Alerts, see 1009886.1.

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