PHP realpath bypass safe_mode restriction
| php-realpath-safemode-bypass (18512) |  Medium Risk |
Description:
PHP could allow a remote attacker to supply a specially-crafted file path to bypass the safe_mode restriction, caused by improper implementation of the realpath function.
Platforms Affected:
- Canonical, Ubuntu 4.10
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 10.0
- MandrakeSoft, Mandrake Linux 10.0 AMD64
- MandrakeSoft, Mandrake Linux 10.1
- MandrakeSoft, Mandrake Linux 10.1 X86_64
- MandrakeSoft, Mandrake Linux 9.2
- MandrakeSoft, Mandrake Linux 9.2 AMD64
- MandrakeSoft, Mandrake Linux Corporate Server 2.1
- MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
- OpenPKG, OpenPKG 2.1
- OpenPKG, OpenPKG 2.2
- OpenPKG, OpenPKG CURRENT
- PHP, PHP 4.0 Beta 4 Patch1
- PHP, PHP 4.0 Beta1
- PHP, PHP 4.0 Beta2
- PHP, PHP 4.0 Beta3
- PHP, PHP 4.0 Beta4
- PHP, PHP 4.0 RC1
- PHP, PHP 4.0 RC2
- 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
- PHP, PHP 5.0.0 RC3
- PHP, PHP 5.0.0 RC2
- PHP, PHP 5.0.0 RC1
- PHP, PHP 5.0.0 Beta4
- PHP, PHP 5.0.0 Beta3
- PHP, PHP 5.0.0 Beta2
- PHP, PHP 5.0.0 Beta1
- PHP, PHP 5.0.1
- PHP, PHP 5.0.2
- 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 OpenPKG: Refer to OpenPKG Security Advisory OpenPKG-SA-2004.053 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-99-1 and USN-99-2 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Bypass Security
References:
- 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-116, Apple Security Update 2005-001 for Mac OS X at http://www.ciac.org/ciac/bulletins/p-116.shtml.
- 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-2004-1064: The safe mode checks in PHP 4.x to 4.3.9 and PHP 5.x to 5.0.2 truncate the file path before passing the data to the realpath function, which could allow attackers to bypass safe mode. NOTE: this issue was originally REJECTed by its CNA before publication, but that decision is in active dispute. This candidate may change significantly in the future as a result of further discussion.
- GLSA-200412-14: PHP: Multiple vulnerabilities
- MDKSA-2004:151: Updated php packages fix multiple vulnerabilities
- OpenPKG-SA-2004.053: PHP
Reported:
Dec 15, 2004
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