PHP unserialize code execution

php-unserialize-code-execution (18514)

High Risk

Description:

PHP could allow remote attacker to supply specially-crafted strings to the unserialize function to obtain sensitive information or execute arbitrary code on the system.

Platforms Affected:

• Canonical, Ubuntu 4.10
• FedoraProject, Fedora Core 2
• Gentoo, Linux
• MandrakeSoft, Mandrake Linux 10.0 AMD64
• MandrakeSoft, Mandrake Linux 10.0
• MandrakeSoft, Mandrake Linux 10.1
• MandrakeSoft, Mandrake Linux 10.1 X86_64
• MandrakeSoft, Mandrake Linux 9.2 AMD64
• MandrakeSoft, Mandrake Linux 9.2
• MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 2.1
• OpenPKG, OpenPKG 2.1
• OpenPKG, OpenPKG 2.2
• OpenPKG, OpenPKG CURRENT
• PHP, PHP 4.0 RC2
• PHP, PHP 4.0 RC1
• PHP, PHP 4.0 Beta4
• PHP, PHP 4.0 Beta3
• PHP, PHP 4.0 Beta2
• PHP, PHP 4.0 Beta1
• PHP, PHP 4.0 Beta 4 Patch1
• PHP, PHP 4.0.0
• PHP, PHP 4.0.1
• PHP, PHP 4.0.2
• PHP, PHP 4.0.3
• PHP, PHP 4.0.4
• PHP, PHP 4.0.5
• PHP, PHP 4.0.6
• PHP, PHP 4.0.7
• PHP, PHP 4.1.0
• PHP, PHP 4.1.1
• PHP, PHP 4.1.2
• PHP, PHP 4.1.3
• PHP, PHP 4.2.0
• PHP, PHP 4.2.1
• PHP, PHP 4.2.2
• PHP, PHP 4.2.3
• PHP, PHP 4.2.4
• PHP, PHP 4.3.0
• PHP, PHP 4.3.1
• PHP, PHP 4.3.2
• PHP, PHP 4.3.3
• PHP, PHP 4.3.4
• PHP, PHP 4.3.5
• PHP, PHP 4.3.6
• PHP, PHP 4.3.7
• PHP, PHP 4.3.8
• PHP, PHP 4.3.9
• PHP, PHP 5.0.0 Beta1
• PHP, PHP 5.0.0 RC2
• PHP, PHP 5.0.0 RC1
• PHP, PHP 5.0.0 Beta4
• PHP, PHP 5.0.0
• PHP, PHP 5.0.0 Beta3
• PHP, PHP 5.0.0 RC3
• PHP, PHP 5.0.0 Beta2
• PHP, PHP 5.0.1
• PHP, PHP 5.0.2
• RedHat, Enterprise Linux 2.1 AS
• RedHat, Enterprise Linux 2.1 WS
• RedHat, Enterprise Linux 2.1 ES
• RedHat, Enterprise Linux 3 Desktop
• RedHat, Enterprise Linux 3 AS
• RedHat, Enterprise Linux 3 ES
• RedHat, Enterprise Linux 3 WS
• RedHat, Enterprise Linux 4 WS
• RedHat, Enterprise Linux 4 ES
• RedHat, Enterprise Linux 4 AS
• RedHat, Enterprise Linux 4 Desktop
• RedHat, Linux Advanced Workstation 2.1 Itanium
• RedHat, Stronghold
• SuSE, SuSE Linux 8.1
• SuSE, SuSE Linux 8.2
• SuSE, SuSE Linux 9.0
• SuSE, SuSE Linux 9.1
• SuSE, SuSE Linux 9.2
• SuSE, SuSE Linux Enterprise Server 8.0
• Turbolinux, Turbolinux 10 Desktop
• Turbolinux, Turbolinux 10 F...
• Turbolinux, Turbolinux 10 Server
• Turbolinux, Turbolinux 7 Server
• Turbolinux, Turbolinux 7 Workstation
• Turbolinux, Turbolinux 8 Server
• Turbolinux, Turbolinux 8 Workstation
• Turbolinux, Turbolinux Home
• Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
• Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed

Remedy:

For PHP4:
Upgrade to the latest version of PHP4 (4.3.10 or later), available from the PHP Web site. See References.

For PHP5:
Upgrade to the latest version of PHP5 (5.0.3 or later), available from the PHP Web site. See References.

For Mandrake Linux:
Upgrade to the latest php package as listed below. Refer to Mandrakesoft Security Advisory MDKSA-2004:151 . See References.

Mandrake Linux 9.2: 4.3.3-2.3.92mdk or later
Mandrake Linux 9.2/AMD64: 4.3.3-2.3.92mdk or later
Mandrake Linux 10.0: 4.3.4-4.3.100mdk or later
Mandrake Linux 10.0/AMD64: 4.3.4-4.3.100mdk or later
Mandrake Linux 10.1: 4.3.8-3.2.101mdk or later
Mandrake Linux 10.1/X86_64: 4.3.8-3.2.101mdk or later
Corporate Server 2.1: 4.2.3-4.3.C21mdk or later
Corporate Server 2.1/X86_64: .2.3-4.3.C21mdk or later

For Trustix Secure Linux:
Upgrade to the latest php package. Refer to Trustix Secure Linux Security Advisory #2004-0066 for more information. See References.

For Ubuntu Linux:
Upgrade to the latest libapache2-mod-php4, php4 or php4-cgi package (4:4.3.8-3ubuntu7.1 or later), as listed in USN-40-1 December 16, 2004 for more information. See References.

For Gentoo Linux:
Upgrade to the latest version of php (4.3.10 or later), as listed in GLSA 200412-14. See References.

For Fedora Core 2:
Upgrade to the latest php package (4.3.10-2.4 or later), as listed in Fedora Update Notification FEDORA-2004-567. See References.

For TurboLinux:
Upgrade to the latest PHP package (4.3.8-11 or later), as listed in Turbolinux Security Advisory TLSA-2005-1. See References.

For SUSE Linux:
Upgrade to latest mod_php4 or php4 package, as listed below. Refer to SUSE Security Announcement SUSE-SA:2005:002. See References.

x86:
SUSE 9.2 and 9.1: php4-4.3.8-8.3 or later
SUSE 9.0: mod_php4-4.3.3-183 or later
SUSE 8.2: mod_php4-4.3.1-174 or later
SUSE 8.1: mod_php4-4.2.2-485 or later

For Red Hat Linux:
Refer to RHSA-2005:032-06 or RHSA-2005:031-08 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux Stronghold:
Refer to RHSA-2005:816-10 for patch, upgrade, or suggested workaround information. See References.

For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2004.053 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Gain Access

References:

• BugTraq Mailing List, Fri Dec 17 2004 - 11:20:23 CST, phphpbb2 + php version < 4.3.10 unserialize() memory dump sql password from config.php exploit at http://archives.neohapsis.com/archives/bugtraq/2004-12/0221.html.
• BugTraq Mailing List, Wed Dec 15 2004 - 12:46:20 CST , Advisory 01/2004: Multiple vulnerabilities in PHP 4/5 at http://archives.neohapsis.com/archives/bugtraq/2004-12/0173.html.
• CIAC Information Bulletin P-067, PHP Multiple Vulnerabilities at http://www.ciac.org/ciac/bulletins/p-067.shtml.
• CIAC Information Bulletin P-116, Apple Security Update 2005-001 for Mac OS X at http://www.ciac.org/ciac/bulletins/p-116.shtml.
• Fedora Update Notification FEDORA-2004-567, Fedora: php-4.3.10-2.4 update at http://www.linuxsecurity.com/content/view/117629/102/.
• PHP Web site, PHP 4.3.10 Release Announcement at http://www.php.net/release_4_3_10.php.
• BID-11964: PHP Multiple Local And Remote Vulnerabilities
• CVE-2004-1019: The deserialization code in PHP before 4.3.10 and PHP 5.x up to 5.0.2 allows remote attackers to cause a denial of service and execute arbitrary code via untrusted data to the unserialize function that may trigger information disclosure
• GLSA-200412-14: PHP: Multiple vulnerabilities
• MDKSA-2004:151: Updated php packages fix multiple vulnerabilities
• OpenPKG-SA-2004.053: PHP
• RHSA-2004-687: php security update
• RHSA-2005-031: php security update
• RHSA-2005-032: php security update
• RHSA-2005-816: apache
• SUSE-SA:2005:002: php4/mod_php4: remote code execution

Reported:

Dec 15, 2004

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