PHP SAPI php_getuid() safe_mode security bypass

php-getuid-safemode-bypass (47318) The risk level is classified as MediumMedium Risk

Description:

PHP could allow a remote attacker to bypass safe_mode security restrictions, caused by an error when using the SAPI php_getuid() function. An attacker could exploit this vulnerability using unspecified attack vectors to bypass safe_mode security restrictions and possibly execute arbitrary PHP code on the system with privileges of the Web server process.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Bypass Security

Remedy:

Upgrade to the latest version of PHP (5.2.8 or later), available from the PHP Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • BugTraq Mailing List, Sat Dec 06 2008 - 13:40:48 CST : SecurityReason: PHP 5.2.6 SAPI php_getuid() overload.
  • HPSBUX02431 SSRT090085 rev.1: HP-UX Running Apache Web Server Suite, Remote Denial of Service (DoS), Execution of Arbitrary Code.
  • PHP Web site: PHP: Hypertext Preprocessor.
  • PHP Web site: PHP: PHP 5 ChangeLog.
  • SecurityReason SecurityAlert : 59: PHP 5.2.6 SAPI php_getuid() overload.
  • ASA-2009-255: HPSBUX02431 SSRT090085 rev.1 - HP-UX Running Apache Web Server SuiteRemote Denial of Service (DoS) Execution of Arbitrary Code
  • BID-32688: PHP SAPI 'php_getuid()' Safe Mode Restriction-Bypass Vulnerability
  • CVE-2008-5624: PHP 5 before 5.2.7 does not properly initialize the page_uid and page_gid global variables for use by the SAPI php_getuid function, which allows context-dependent attackers to bypass safe_mode restrictions via variable settings that are intended to be restricted to root, as demonstrated by a setting of /etc for the error_log variable.
  • DSA-1789: php5 -- several vulnerabilities
  • GLSA-201001-03: PHP: Multiple vulnerabilities
  • MDVSA-2009:045: php
  • SA35650: HP-UX Apache Web Server Suite Multiple Vulnerabilities

Platforms Affected:

  • Apache HTTP Server 2.0.59
  • Apache HTTP Server 2.2.8
  • Apache Tomcat 5.5.27
  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 7.10
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Debian Debian Linux 4.0
  • Debian Debian Linux 5.0
  • Gentoo Linux
  • HP HP-UX B.11.11
  • HP HP-UX B.11.23
  • HP HP-UX B.11.31
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux 2008.1 X86_64
  • MandrakeSoft Mandrake Linux 2008.1
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • Mandriva Linux 2009.0
  • Mandriva Linux 2009.0 X86_64
  • PHP PHP 5.0.0
  • PHP PHP 5.0.0 Beta2
  • PHP PHP 5.0.0 Beta3
  • PHP PHP 5.0.0 Beta4
  • PHP PHP 5.0.0 RC2
  • PHP PHP 5.0.0 RC1
  • PHP PHP 5.0.0 Beta1
  • PHP PHP 5.0.0 RC3
  • PHP PHP 5.0.1
  • PHP PHP 5.0.2
  • PHP PHP 5.0.3
  • PHP PHP 5.0.4
  • PHP PHP 5.0.5
  • PHP PHP 5.1.0
  • PHP PHP 5.1.1
  • PHP PHP 5.1.2
  • PHP PHP 5.1.3
  • PHP PHP 5.1.4
  • PHP PHP 5.1.5
  • PHP PHP 5.1.6
  • PHP PHP 5.2.0
  • PHP PHP 5.2.1
  • PHP PHP 5.2.2
  • PHP PHP 5.2.3
  • PHP PHP 5.2.4
  • PHP PHP 5.2.5
  • PHP PHP 5.2.6
  • PHP PHP 5.2.7
  • Turbolinux Turbolinux 10 Server
  • Turbolinux Turbolinux 10 Server x64 Ed
  • Turbolinux Turbolinux 11 Server
  • Turbolinux Turbolinux 11 Server x64 Ed
  • Turbolinux Turbolinux 8 Server
  • Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
  • Turbolinux Turbolinux Appliance Server 2.0

Reported:

Dec 05, 2008

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