document id		Synopsis		Date
57497		Security Vulnerability in Solaris Systems With Basic Security Module (BSM) Configured to Audit the "ad" or "as" Audit Class		22 Jun 2004

Description

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Sun(sm) Alert Notification

Sun Alert ID: 57497
Synopsis: Security Vulnerability in Solaris Systems With Basic Security Module (BSM) Configured to Audit the "ad" or "as" Audit Class
Category: Security
Product: Solaris
BugIDs: 4857394
Avoidance: Patch
State: Resolved
Date Released: 22-Jun-2004
Date Closed: 22-Jun-2004
Date Modified:

1. Impact

Local unprivileged users may be able to panic Solaris systems with Basic Security Module (BSM) enabled causing a Denial of Service (DoS). This issue can only occur on systems where BSM has been configured to audit the Administrative audit class "ad" or the System-Wide Administration audit class "as".

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

Solaris 7 without patch 106541-33
Solaris 8 without patch 109007-18
Solaris 9 without patch 114332-12

x86 Platform

Solaris 7 without patch 106542-33
Solaris 8 without patch 109008-18
Solaris 9 without patch 116558-01

Note: This issue can only occur on systems with BSM configured to audit either the Administrative audit class "ad" or the System-Wide Administration audit class "as".

If a Solaris system has BSM enabled, the following line will be present in the "/etc/system" file:

    $ grep c2audit /etc/system
    set c2audit:audit_load = 1

To determine if either the Administrative audit class or the System-Wide Administration audit class is configured to be audited, the "flags" line of the "/etc/security/audit_control" file will contain either "ad" or "as":

    # egrep ^flags:.*a[sd] /etc/security/audit_control
    flags:lo,ad

3. Symptoms

The system panics with a stack trace similar to the following:

    pcache_poll+0x98(0, 30005437bc8, 25, 2a100aebaec, 1, 20)
    poll+0x3e0(ffbfaa60, 1, 300053f7ef0, 1388, 0, 18)
    syscall_trap32+0xa8(ffbfaa60, 3, 1388, 0, 1388, 0)

Solution Summary

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4. Relief/Workaround

There is no workaround. Please see the "Resolution" section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

Solaris 7 with patch 106541-33 or later
Solaris 8 with patch 109007-18 or later
Solaris 9 with patch 114332-12 or later

x86 Platform

Solaris 7 with patch 106542-33 or later
Solaris 8 with patch 109008-18 or later
Solaris 9 with patch 116558-01 or later

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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