An updated ipmitool package that fixes one security issue is now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The ipmitool package contains a command line utility for interfacing with devices that support the Intelligent Platform Management Interface (IPMI) specification. IPMI is an open standard for machine health, inventory, and remote power control.

It was discovered that the IPMI event daemon (ipmievd) created its process ID (PID) file with world-writable permissions. A local user could use this flaw to make the ipmievd init script kill an arbitrary process when the ipmievd daemon is stopped or restarted.
(CVE-2011-4339)

All users of ipmitool are advised to upgrade to this updated package, which contains a backported patch to correct this issue. After installing this update, the IPMI event daemon (ipmievd) will be restarted automatically.

It was discovered that the IPMI event daemon (ipmievd) created its process ID (PID) file with world-writable permissions. A local user could use this flaw to make the ipmievd init script kill an arbitrary process when the ipmievd daemon is stopped or restarted.
(CVE-2011-4339)

Note: This issue did not affect the default configuration of OpenIPMI as shipped with Scientific Linux 5.

This update also fixes the following bugs :

  - Prior to this update, the ipmitool utility first checked     the IPMI hardware for Dell IPMI extensions and listed     only supported commands when printing command usage like     the option 'ipmtool delloem help'. On a non-Dell     platform, the usage text was incomplete and misleading.
    This update lists all Dell OEM extensions in usage texts     on all platforms, which allows users to check for     command line arguments on non-Dell hardware.

  - Prior to this update, the ipmitool utility tried to     retrieve the Sensor Data Records (SDR) from the IPMI bus     instead of the Baseboard Management Controller (BMC) bus     when IPMI-enabled devices reported SDR under a different     owner than the BMC. As a consequence, the timeout     setting for the SDR read attempt could significantly     decrease the performance and no sensor data was shown.
    This update modifies ipmitool to read these SDR records     from the BMC and shows the correct sensor data on these     platforms.

  - Prior to this update, the exit code of the 'ipmitool -o     list' option was not set correctly. As a consequence,     'ipmitool -o list' always returned the value 1 instead     of the expected value 0. This update modifies the     underlying code to return the value 0 as expected.

  - Prior to this update, the 'ipmi' service init script did     not specify the full path to the '/sbin/lsmod' and     '/sbin/modprobe' system utilities. As a consequence, the     init script failed when it was executed if PATH did not     point to /sbin, for example, when running 'sudo     /etc/init.d/ipmi'. This update modifies the init script     so that it now contains the full path to lsmod and     modrpobe. Now, it can be executed with sudo.

  - Prior to this update, the ipmitool man page did not list     the '-b', '-B', '-l' and '-T' options. In this update,     these options are documented in the ipmitool man page.

This update also adds the following enhancement :

  - Updates to the Dell-specific IPMI extension: A new     vFlash command, which allows users to display     information about extended SD cards; a new setled     command, which allows users to display the backplane LED     status; improved error descriptions; added support for     new hardware; and updated documentation of the ipmitool     delloem commands in the ipmitool manual page.

The remote Solaris system is missing necessary patches to address security updates :

  - ipmievd (aka the IPMI event daemon) in OpenIPMI, as used     in the ipmitool package 1.8.11 in Red Hat Enterprise     Linux (RHEL) 6, Debian GNU/Linux, Fedora 16, and other     products uses 0666 permissions for its ipmievd.pid PID     file, which allows local users to kill arbitrary     processes by writing to this file. (CVE-2011-4339)

The remote Oracle Linux 6 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2011-1814 advisory.

    [1.8.11-12.1]
    - fixed wrong permissions on ipmievd.pid (#756684)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2011:1814 advisory.

    The ipmitool package contains a command line utility for interfacing with     devices that support the Intelligent Platform Management Interface (IPMI)     specification. IPMI is an open standard for machine health, inventory, and     remote power control.

    It was discovered that the IPMI event daemon (ipmievd) created its process     ID (PID) file with world-writable permissions. A local user could use this     flaw to make the ipmievd init script kill an arbitrary process when the     ipmievd daemon is stopped or restarted. (CVE-2011-4339)

    All users of ipmitool are advised to upgrade to this updated package, which     contains a backported patch to correct this issue. After installing this     update, the IPMI event daemon (ipmievd) will be restarted automatically.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

A vulnerability has been discovered and corrected in ipmitool :

ipmievd as used in the ipmitool package uses 0666 permissions for its ipmievd.pid PID file, which allows local users to kill arbitrary processes by writing to this file (CVE-2011-4339).

In Mandriva the ipmievd daemon from the ipmitool package does not have an initscript to start and stop the service, however one could rather easily craft an initscript or start the service by other means rendering the system vulnerable to this issue.

The updated packages have been patched to correct this issue.

This update fixes following security bug: CVE-2011-4339 - OpenIPMI:
IPMI event daemon creates PID file with world writeable permissions

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote MiracleLinux 4 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2012-21:01 advisory.

    This package contains a utility for interfacing with devices that support the Intelligent Platform     Management Interface specification.  IPMI is an open standard for machine health, inventory, and remote     power control.
    This utility can communicate with IPMI-enabled devices through either a kernel driver such as OpenIPMI or     over the RMCP LAN protocol defined in the IPMI specification.  IPMIv2 adds support for encrypted LAN     communications and remote Serial-over-LAN functionality.
    It provides commands for reading the Sensor Data Repository (SDR) and displaying sensor values, displaying     the contents of the System Event Log (SEL), printing Field Replaceable Unit (FRU) information, reading and     setting LAN configuration, and chassis power control.
    Security issues fixed with this release:
    CVE-2011-4339     ipmievd (aka the IPMI event daemon) in OpenIPMI, as used in the ipmitool package 1.8.11 in Red Hat     Enterprise Linux (RHEL) 6, Debian GNU/Linux, Fedora 16, and other products uses 0666 permissions for its     ipmievd.pid PID file, which allows local users to kill arbitrary processes by writing to this file.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Updated OpenIPMI packages that fix one security issue, multiple bugs, and add one enhancement are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The OpenIPMI packages provide command line tools and utilities to access platform information using Intelligent Platform Management Interface (IPMI). System administrators can use OpenIPMI to manage systems and to perform system health monitoring.

It was discovered that the IPMI event daemon (ipmievd) created its process ID (PID) file with world-writable permissions. A local user could use this flaw to make the ipmievd init script kill an arbitrary process when the ipmievd daemon is stopped or restarted.
(CVE-2011-4339)

Note: This issue did not affect the default configuration of OpenIPMI as shipped with Red Hat Enterprise Linux 5.

This update also fixes the following bugs :

* Prior to this update, the ipmitool utility first checked the IPMI hardware for Dell IPMI extensions and listed only supported commands when printing command usage like the option 'ipmtool delloem help'. On a non-Dell platform, the usage text was incomplete and misleading.
This update lists all Dell OEM extensions in usage texts on all platforms, which allows users to check for command line arguments on non-Dell hardware. (BZ#658762)

* Prior to this update, the ipmitool utility tried to retrieve the Sensor Data Records (SDR) from the IPMI bus instead of the Baseboard Management Controller (BMC) bus when IPMI-enabled devices reported SDR under a different owner than the BMC. As a consequence, the timeout setting for the SDR read attempt could significantly decrease the performance and no sensor data was shown. This update modifies ipmitool to read these SDR records from the BMC and shows the correct sensor data on these platforms. (BZ#671059, BZ#749796)

* Prior to this update, the exit code of the 'ipmitool -o list' option was not set correctly. As a consequence, 'ipmitool -o list' always returned the value 1 instead of the expected value 0. This update modifies the underlying code to return the value 0 as expected.
(BZ#740780)

* Prior to this update, the 'ipmi' service init script did not specify the full path to the '/sbin/lsmod' and '/sbin/modprobe' system utilities. As a consequence, the init script failed when it was executed if PATH did not point to /sbin, for example, when running 'sudo /etc/init.d/ipmi'. This update modifies the init script so that it now contains the full path to lsmod and modrpobe. Now, it can be executed with sudo. (BZ#829705)

* Prior to this update, the ipmitool man page did not list the '-b', '-B', '-l' and '-T' options. In this update, these options are documented in the ipmitool man page. (BZ#846596)

This update also adds the following enhancement :

* Updates to the Dell-specific IPMI extension: A new vFlash command, which allows users to display information about extended SD cards; a new setled command, which allows users to display the backplane LED status; improved error descriptions; added support for new hardware;
and updated documentation of the ipmitool delloem commands in the ipmitool manual page. (BZ#797050)

All users of OpenIPMI are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add this enhancement.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
57379	CentOS 6 : ipmitool (CESA-2011:1814)	Nessus	CentOS Local Security Checks	2011/12/23	2021/1/4	low
63601	Scientific Linux Security Update : OpenIPMI on SL5.x i386/x86_64 (20130108)	Nessus	Scientific Linux Local Security Checks	2013/1/17	2021/1/14	low
80645	Oracle Solaris Third-Party Patch Update : ipmitool (cve_2011_4339_access_controls)	Nessus	Solaris Local Security Checks	2015/1/19	2021/1/14	low
68405	Oracle Linux 6 : ipmitool (ELSA-2011-1814)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	medium
57295	RHEL 6 : ipmitool (RHSA-2011:1814)	Nessus	Red Hat Local Security Checks	2011/12/14	2024/11/4	medium
57413	Mandriva Linux Security Advisory : ipmitool (MDVSA-2011:196)	Nessus	Mandriva Local Security Checks	2011/12/29	2021/1/6	low
57419	Fedora 16 : ipmitool-1.8.11-8.fc16 (2011-17065)	Nessus	Fedora Local Security Checks	2012/1/3	2021/1/11	low
284110	MiracleLinux 4 : ipmitool-1.8.11-12.AXS4.1 (AXSA:2012-21:01)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	medium
57420	Fedora 15 : ipmitool-1.8.11-7.fc15 (2011-17071)	Nessus	Fedora Local Security Checks	2012/1/3	2021/1/11	low
63568	CentOS 5 : OpenIPMI (CESA-2013:0123)	Nessus	CentOS Local Security Checks	2013/1/17	2021/1/4	low

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