CVE-2006-3011 : Detail

CVE-2006-3011

A01-Broken Access Control
0.05%V3
Local
2006-06-26
19h00 +00:00
2017-07-19
13h57 +00:00
CVE.org
NVD
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CVE Descriptions

The error_log function in basic_functions.c in PHP before 4.4.4 and 5.x before 5.1.5 allows local users to bypass safe mode and open_basedir restrictions via a "php://" or other scheme in the third argument, which disables safe mode.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 7171

Publication date : 2008-11-19 23h00 +00:00
Author : SecurityReason
EDB Verified : Yes

[ SecurityReason.com PHP 5.2.6 (error_log) safe_mode bypass ] Author: Maksymilian Arciemowicz (cXIb8O3) securityreason.com Date: - - Written: 10.11.2008 - - Public: 20.11.2008 SecurityReason Research SecurityAlert Id: 57 CWE: CWE-264 SecurityRisk: Medium Affected Software: PHP 5.2.6 Advisory URL: http://securityreason.com/achievement_securityalert/57 Vendor: http://www.php.net - --- 0.Description --- PHP is an HTML-embedded scripting language. Much of its syntax is borrowed from C, Java and Perl with a couple of unique PHP-specific features thrown in. The goal of the language is to allow web developers to write dynamically generated pages quickly. error_log They allow you to define your own error handling rules, as well as modify the way the errors can be logged. This allows you to change and enhance error reporting to suit your needs. - --- 0. error_log const. bypassed by php_admin_flag --- The main problem is between using safe_mode in global mode php.ini­: safe_mode = On and declaring via php_admin_flag <Directory "/www"> ... php_admin_flag safe_mode On </Directory> When we create some php script in /www/ and try call to: ini_set("error_log", "/hack/"); or in /www/.htaccess php_value error_log "/hack/bleh.php" Result: Warning: Unknown: SAFE MODE Restriction in effect. The script whose uid is 80 is not allowed to access /hack/ owned by uid 1001 in Unknown on line 0 Warning: ini_set() [function.ini-set]: SAFE MODE Restriction in effect. The script whose uid is 80 is not allowed to access /hack/ owned by uid 1001 in /www/phpinfo.php on line 4 It was for safe_mode declared in php.ini. But if we use php_admin_flag safe_mode On in httpd.conf, we will get only Warning: ini_set() [function.ini-set]: SAFE MODE Restriction in effect. The script whose uid is 80 is not allowed to access /hack/ owned by uid 1001 in /www/phpinfo.php on line 4 syntax in .htaccess php_value error_log "/hack/blehx.php" is allowed and bypass safe_mode. example exploit: error_log("<?php phpinfo(); ?>", 0); - --- 2. How to fix --- Fixed in CVS http://cvs.php.net/viewvc.cgi/php-src/NEWS?revision=1.2027.2.547.2.1315&view=markup Note: Do not use safe_mode as a main safety. --- 3. Greets --- sp3x Infospec schain p_e_a pi3 - --- 4. Contact --- Author: SecurityReason [ Maksymilian Arciemowicz ( cXIb8O3 ) ] Email: cxib [at] securityreason [dot] com GPG: http://securityreason.pl/key/Arciemowicz.Maksymilian.gpg http://securityreason.com http://securityreason.pl # milw0rm.com [2008-11-20]

Products Mentioned

Configuraton 0

Php>>Php >> Version To (including) 4.4.3

Php>>Php >> Version 1.0

Php>>Php >> Version 2.0

Php>>Php >> Version 2.0b10

Php>>Php >> Version 3.0

Php>>Php >> Version 3.0.1

Php>>Php >> Version 3.0.2

Php>>Php >> Version 3.0.3

Php>>Php >> Version 3.0.4

Php>>Php >> Version 3.0.5

Php>>Php >> Version 3.0.6

Php>>Php >> Version 3.0.7

Php>>Php >> Version 3.0.8

Php>>Php >> Version 3.0.9

Php>>Php >> Version 3.0.10

Php>>Php >> Version 3.0.11

Php>>Php >> Version 3.0.12

Php>>Php >> Version 3.0.13

Php>>Php >> Version 3.0.14

Php>>Php >> Version 3.0.15

Php>>Php >> Version 3.0.16

Php>>Php >> Version 3.0.17

Php>>Php >> Version 3.0.18

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0.0

Php>>Php >> Version 4.0.1

Php>>Php >> Version 4.0.2

Php>>Php >> Version 4.0.3

Php>>Php >> Version 4.0.4

Php>>Php >> Version 4.0.5

Php>>Php >> Version 4.0.6

Php>>Php >> Version 4.0.7

Php>>Php >> Version 4.1.0

Php>>Php >> Version 4.1.1

Php>>Php >> Version 4.1.2

Php>>Php >> Version 4.2.0

Php>>Php >> Version 4.2.1

Php>>Php >> Version 4.2.2

Php>>Php >> Version 4.2.3

Php>>Php >> Version 4.3.0

Php>>Php >> Version 4.3.1

Php>>Php >> Version 4.3.2

Php>>Php >> Version 4.3.3

Php>>Php >> Version 4.3.4

Php>>Php >> Version 4.3.5

Php>>Php >> Version 4.3.6

Php>>Php >> Version 4.3.7

Php>>Php >> Version 4.3.8

Php>>Php >> Version 4.3.9

Php>>Php >> Version 4.3.10

Php>>Php >> Version 4.3.11

Php>>Php >> Version 4.4.0

Php>>Php >> Version 4.4.1

Php>>Php >> Version 4.4.2

Configuraton 0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.1

Php>>Php >> Version 5.0.2

Php>>Php >> Version 5.0.3

Php>>Php >> Version 5.0.4

Php>>Php >> Version 5.0.5

Php>>Php >> Version 5.1.0

Php>>Php >> Version 5.1.1

Php>>Php >> Version 5.1.2

Php>>Php >> Version 5.1.3

Php>>Php >> Version 5.1.4

Php>>Php >> Version 5.1.6

References

http://www.php.net/release_5_1_5.php
Tags : x_refsource_CONFIRM
http://securitytracker.com/id?1016377
Tags : vdb-entry, x_refsource_SECTRACK
http://secunia.com/advisories/21050
Tags : third-party-advisory, x_refsource_SECUNIA
http://securityreason.com/securityalert/1129
Tags : third-party-advisory, x_refsource_SREASON
http://secunia.com/advisories/21546
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.vupen.com/english/advisories/2006/2523
Tags : vdb-entry, x_refsource_VUPEN
http://www.ubuntu.com/usn/usn-320-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.mandriva.com/security/advisories?name=MDKSA-2006:122
Tags : vendor-advisory, x_refsource_MANDRIVA
http://secunia.com/advisories/21125
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/20818
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.osvdb.org/26827
Tags : vdb-entry, x_refsource_OSVDB
http://www.securityfocus.com/bid/18645
Tags : vdb-entry, x_refsource_BID
http://securityreason.com/achievement_securityalert/41
Tags : third-party-advisory, x_refsource_SREASONRES