Vulnerability Name:

CVE-2006-5178 (CCN-29340)

Assigned:2006-10-03
Published:2006-10-03
Updated:2018-10-30
Summary:Race condition in the symlink function in PHP 5.1.6 and earlier allows local users to bypass the open_basedir restriction by using a combination of symlink, mkdir, and unlink functions to change the file path after the open_basedir check and before the file is opened by the underlying system, as demonstrated by symlinking a symlink into a subdirectory, to point to a parent directory via .. (dot dot) sequences, and then unlinking the resulting symlink.
CVSS v3 Severity:6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:6.2 Medium (CVSS v2 Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C)
4.4 Medium (Temporal CVSS v2 Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:UR)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.4 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N)
4.5 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N/E:U/RL:OF/RC:UR)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-362
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: Full-Disclosure Mailing List, Tue Oct 03 2006 - 15:38:30 CDT
Advisory 08/2006: PHP open_basedir Race Condition Vulnerability

Source: MITRE
Type: CNA
CVE-2006-5178

Source: FULLDISC
Type: Exploit
20061003 Advisory 08/2006: PHP open_basedir Race Condition Vulnerability

Source: CCN
Type: SA22235
PHP "open_basedir" Symlink Security Bypass Vulnerability

Source: SECUNIA
Type: Exploit, Vendor Advisory
22235

Source: SECUNIA
Type: UNKNOWN
22424

Source: SREASON
Type: UNKNOWN
1692

Source: CCN
Type: SECTRACK ID: 1016977
PHP Race Condition Lets Users Bypass open_basedir Restrictions

Source: SECTRACK
Type: Exploit
1016977

Source: MISC
Type: Exploit, Vendor Advisory
http://www.hardened-php.net/advisory_082006.132.html

Source: MANDRIVA
Type: UNKNOWN
MDKSA-2006:185

Source: MISC
Type: UNKNOWN
http://www.neosecurityteam.net/index.php?action=advisories&id=26

Source: CCN
Type: OpenPKG-SA-2006.023
PHP

Source: CCN
Type: OSVDB ID: 29495
PHP Symlink Function Race Condition open_basedir Bypass

Source: BUGTRAQ
Type: UNKNOWN
20061003 Advisory 08/2006: PHP open_basedir Race Condition Vulnerability

Source: BUGTRAQ
Type: UNKNOWN
20061009 PHP open_basedir with symlink() function Race Condition PoC exploit

Source: OPENPKG
Type: UNKNOWN
OpenPKG-SA-2006.023

Source: BID
Type: Exploit
20326

Source: CCN
Type: BID-20326
PHP Symbolic Link Open_Basedir Bypass Vulnerability

Source: CCN
Type: TLSA-2006-38
Multiple vulnerabilities in php

Source: TURBO
Type: UNKNOWN
TLSA-2006-38

Source: VUPEN
Type: UNKNOWN
ADV-2006-3901

Source: XF
Type: UNKNOWN
php-openbasedir-security-bypass(29340)

Source: XF
Type: UNKNOWN
php-openbasedir-security-bypass(29340)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:php:php:4.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.1:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.1:patch1:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.1:patch2:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.3:patch1:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.4:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.5:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.6:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.7:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.7:rc1:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.7:rc2:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.0.7:rc3:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.1.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.2:*:dev:*:*:*:*:*
  • OR cpe:/a:php:php:4.2.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.2.1:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.2.3:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.2:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.3:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.4:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.5:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.6:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.7:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.8:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.9:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.10:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.3.11:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.4.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.4.1:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.4.2:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.4.3:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:4.4.4:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0:rc3:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.1:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.2:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.3:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.4:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.5:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.2:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.4:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.5:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:*:*:*:*:*:*:*:* (Version <= 5.1.6)

    • Configuration CCN 1:
  • cpe:/a:php:php:5.0.3:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.4:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.5:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.2:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.4:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.2:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.6:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:beta1:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:beta2:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:beta3:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:beta4:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.0:rc3:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.0.1:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.0:-:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:php:php:5.1.5:-:*:*:*:*:*:*
  • AND
  • cpe:/o:turbolinux:turbolinux:*:*:*:*:*:*:*:*
  • OR cpe:/a:openpkg:openpkg:current:*:*:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux_corporate_server:3.0:*:*:*:*:*:*:*
  • OR cpe:/a:mandrakesoft:mandrake_multi_network_firewall:2.0:*:*:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux:2006:*:*:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux:2006::x86-64:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux:2007:*:*:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux:2007::x86_64:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux_corporate_server:4.0:*:*:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux_corporate_server:4.0::x86_64:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux_corporate_server:3.0::x86_64:*:*:*:*:*
  • OR cpe:/o:turbolinux:turbolinux:*:*:personal:*:*:*:*:*
  • OR cpe:/o:turbolinux:turbolinux:*:*:home:*:*:*:*:*
  • OR cpe:/o:turbolinux:turbolinux:*:*:multimedia:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    php php 4.0
    php php 4.0.1
    php php 4.0.1 patch1
    php php 4.0.1 patch2
    php php 4.0.2
    php php 4.0.3 patch1
    php php 4.0.4
    php php 4.0.5
    php php 4.0.6
    php php 4.0.7
    php php 4.0.7 rc1
    php php 4.0.7 rc2
    php php 4.0.7 rc3
    php php 4.1.0
    php php 4.1.1
    php php 4.1.2
    php php 4.2
    php php 4.2.0
    php php 4.2.1
    php php 4.2.2
    php php 4.2.3
    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 4.3.10
    php php 4.3.11
    php php 4.4.0
    php php 4.4.1
    php php 4.4.2
    php php 4.4.3
    php php 4.4.4
    php php 5.0 rc1
    php php 5.0 rc2
    php php 5.0 rc3
    php php 5.0.0
    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 *
    php php 5.0.3
    php php 5.0.4
    php php 5.0.0
    php php 5.0.5
    php php 5.1.1
    php php 5.1.2
    php php 5.1.4
    php php 5.0.2
    php php 5.1.6
    php php 5.0.0 beta1
    php php 5.0.0 beta2
    php php 5.0.0 beta3
    php php 5.0.0 beta4
    php php 5.0.0 rc1
    php php 5.0.0 rc2
    php php 5.0.0 rc3
    php php 5.0.1
    php php 5.1.0
    php php 5.1.3
    php php 5.1.5
    turbolinux turbolinux *
    openpkg openpkg current
    mandrakesoft mandrake linux corporate server 3.0
    mandrakesoft mandrake multi network firewall 2.0
    mandrakesoft mandrake linux 2006
    mandrakesoft mandrake linux 2006
    mandrakesoft mandrake linux 2007
    mandrakesoft mandrake linux 2007
    mandrakesoft mandrake linux corporate server 4.0
    mandrakesoft mandrake linux corporate server 4.0
    mandrakesoft mandrake linux corporate server 3.0
    turbolinux turbolinux personal *
    turbolinux turbolinux home *
    turbolinux turbolinux multimedia *