PHP realpath bypass safe_mode restriction

php-realpath-safemode-bypass (18512) The risk level is classified as MediumMedium 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.


Consequences:

Bypass Security

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.

References:

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

Reported:

Dec 15, 2004

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