A Vulnerability in Access Manager 7.1 may Allow Unauthorized Access to Resources

Category
Security

Release Phase
Resolved

Bug Id
6644879

Product
Sun Java System Access Manager 7.1

Date of Workaround Release
11-Jun-2008

Date of Resolved Release
24-Dec-2008

In AM 7.1 and later patches, a user can get to AM login screen, ... (see below for details):

1. Impact

Under certain configurations, a security vulnerability in Sun Java
System Access Manager 7.1 may allow a remote unprivileged user to
gain unauthorized access to resources or to gain administrator
privileges without any authentication.

2. Contributing Factors

This issue can occur in the following releases:

Sun Java System Access Manager 7.1 without patch 140504-02

SPARC Platform

Sun Java System Access Manager 7.1 without patch 126356-02

x86 Platform

Sun Java System Access Manager 7.1 without patch 126357-02

Linux Platform

Sun Java System Access Manager 7.1 without patch 126358-02

Windows Platform

Sun Java System Access Manager 7.1 without patch 126359-02

HP-UX Platform

Sun Java System Access Manager 7.1

To determine the version of Access Manager on a Solaris system, the following
command can be run:

    % pkginfo -l SUNWamsvc
      PKGINST: SUNWamsvc
         NAME: Sun Java System Access Manager Services
     CATEGORY: application
         ARCH: all
      VERSION: 7.1,REV=06.12.19.15.12

To determine the version of Sun Java System Access Manager on other systems, the following command can be run:

    # <access-manager-install-dir>/bin/amadmin --version
    Sun Java System Access Manager 7.1
    # <access-manager-install-dir>/bin/amadmin --version
    Sun Java System Access Manager 2005Q4

Other versions of Sun Java System Access Manager are not affected.

Note: Only Sun Java System Access Manager 7.1 installations that
are configured to use Sun Directory Server Enterprise Edition
(DSEE) 5.2 in any configuration or Sun Directory Server Enterprise
Edition (DSEE) 6 with a non-default configuration mode (that allows
binds without a password) as the backend are affected by this issue.

3. Symptoms

There are no predictable symptoms that would show that the described 
vulnerability has been exploited to gain unauthenticated access to resources.

4. Workaround

Currently there is no workaround for this issue if AM 7.1 is configured
to use DSEE 5.2 as the LDAP repository.

To workaround this issue for Access Manager configured to use DSEE 6, 
DSEE 6 needs to be configured in the default DSEE 6 configuration which 
is to "require a bind password". Access Manager login will display 
"Authentication Failed." in this case thereby preventing this issue from being exploited.

This can be done by executing the 'dsconf' command on the DSEE 6 as follows:

# ./dsconf set-server-prop -e require-bind-pwd-enabled:on
Enter "cn=Directory Manager" password:

To print the value of require-bind-pwd-enabled:

# ./dsconf get-server-prop -e require-bind-pwd-enabled
Enter "cn=Directory Manager" password:
require-bind-pwd-enabled : on

After you have set the "require-bind-pwd-enabled" option to "on," you
will be not be able to login to Access Manager with a blank password.

5. Resolution

This issue is addressed in the following releases:

Sun Java System Access Manager 7.1 with patch 140504-02

SPARC Platform

Sun Java System Access Manager 7.1 with patch 126356-02

x86 Platform

Sun Java System Access Manager 7.1 with patch 126357-02

Linux Platform

Sun Java System Access Manager 7.1 with patch 126358-02

Windows Platform

Sun Java System Access Manager 7.1 with patch 126359-02

For more information on Security Sun Alerts, see
Modification History
24-Dec-2008: Updated Contributing Factors and Resolution sections. Resolved

References

126356-02
126357-02
126358-02
126359-02
140504-02

References

SUNPATCH:126356-02
SUNPATCH:126357-02
SUNPATCH:126358-02
SUNPATCH:126359-02
SUNPATCH:140504-02

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