PHP dl() security bypass
| php-dl-security-bypass (36528) |  Medium Risk |
Description:
PHP could allow a remote attacker to bypass security restrictions, caused by an error in the dl() function. A remote attacker could exploit this vulnerability to bypass open_basedir restrictions and gain unauthorized access to the system.
Platforms Affected:
- Gentoo, Linux
- Novell, Linux Desktop 9
- Novell, Linux Desktop 9 SDK
- Novell, Linux POS 9
- Novell, Open Enterprise Server
- Novell, Open Enterprise Server
- Novell, OpenSUSE 10.2
- Novell, OpenSUSE 10.3
- Novell, SLE SDK 10 SP1
- Novell, SUSE Linux Enterprise Desktop 10 SP1
- Novell, SUSE Linux Enterprise Server 10
- Novell, SUSE Linux Enterprise Server 10 SP1
- PHP, PHP 5.0.0 Beta4
- PHP, PHP 5.0.0
- PHP, PHP 5.0.0 RC3
- PHP, PHP 5.0.0 Beta3
- PHP, PHP 5.0.0 Beta2
- PHP, PHP 5.0.0 Beta1
- PHP, PHP 5.0.0 RC1
- PHP, PHP 5.0.0 RC2
- 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
- SuSE, SLE SDK 10
- SuSE, SuSE SLES 9
Remedy:
For Gentoo Linux (PHP):
Refer to GLSA 200710-02 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, Sun Sep 09 2007 - 21:50:28 CDT, /* PHP <=5.2.4 open_basedir bypass & code exec & denial of service errata ... working on windows too .. */ at http://archives.neohapsis.com/archives/bugtraq/2007-09/0094.html.
- BugTraq Mailing List, Sun Sep 09 2007 - 21:36:21 CDT, PHP <=5.2.4 open_basedir bypass & code exec & denial of service at http://archives.neohapsis.com/archives/bugtraq/2007-09/0093.html.
- PHP Web site, PHP: Hypertext Preprocessor at http://www.php.net/.
- CVE-2007-4825: Directory traversal vulnerability in PHP 5.2.4 and earlier allows attackers to bypass open_basedir restrictions and possibly execute arbitrary code via a .. (dot dot) in the dl function.
- GLSA-200710-02: PHP: Multiple vulnerabilities
- SUSE-SA:2008:004: php5 php4 Security Problems
Reported:
Sep 09, 2007
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