Vulnerabilities > CVE-2006-3011 - Permissions, Privileges, and Access Controls vulnerability in PHP

CVSS 4.6 - MEDIUM

Attack vector

LOCAL

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

PARTIAL

Integrity impact

PARTIAL

Availability impact

PARTIAL

local

low complexity

php

CWE-264

nessus

exploit available

NVD

Published: 2006-06-26

Updated: 2017-07-20

Summary

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.

Vulnerable Configurations

Part	Description	Count
Application	Php PHP PHP 1.0 PHP PHP 2.0 PHP PHP 2.0B10 PHP PHP 3.0 PHP PHP 3.0.1 PHP PHP 3.0.2 PHP PHP 3.0.3 PHP PHP 3.0.4 PHP PHP 3.0.5 PHP PHP 3.0.6 PHP PHP 3.0.7 PHP PHP 3.0.8 PHP PHP 3.0.9 PHP PHP 3.0.10 PHP PHP 3.0.11 PHP PHP 3.0.12 PHP PHP 3.0.13 PHP PHP 3.0.14 PHP PHP 3.0.15 PHP PHP 3.0.16 PHP PHP 3.0.17 PHP PHP 3.0.18 PHP PHP 4.0 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 4.2.0 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 - PHP PHP 0.1 PHP PHP 0.1.1 PHP PHP 0.2 PHP PHP 0.2.0 PHP PHP 0.2.1 PHP PHP 0.2.2 PHP PHP 0.2.3 PHP PHP 0.2.4 PHP PHP 0.3 PHP PHP 0.4 PHP PHP 0.5 PHP PHP 0.5.2 PHP PHP 0.5.3 PHP PHP 0.6 PHP PHP 0.7 PHP PHP 0.9 PHP PHP 0.9.0 PHP PHP 0.9.1 PHP PHP 0.9.2 PHP PHP 0.9.3 PHP PHP 0.9.4 PHP PHP 0.10 PHP PHP 0.11 PHP PHP 0.90 PHP PHP 0.91 PHP PHP 1.0.0 PHP PHP 1.0.1 PHP PHP 1.0.2 PHP PHP 1.0.3 PHP PHP 1.0.4 PHP PHP 1.1 PHP PHP 1.1.0 PHP PHP 1.1.1 PHP PHP 1.2 PHP PHP 1.2.0 PHP PHP 1.2.1 PHP PHP 1.2.2 PHP PHP 1.2.3 PHP PHP 1.2.4 PHP PHP 1.2.5 PHP PHP 1.3 PHP PHP 1.3.1 PHP PHP 1.3.5 PHP PHP 1.4 PHP PHP 1.5 PHP PHP 2.0.0 PHP PHP 2.0.1 PHP PHP 2.0.2 PHP PHP 4.1.3 PHP PHP 4.2 PHP PHP 4.2.4 PHP PHP 4.3 PHP PHP 4.4.3 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 5.1.6	252

Common Weakness Enumeration (CWE)

CWE-264 - Permissions, Privileges, and Access Controls

Common Attack Pattern Enumeration and Classification (CAPEC)

Accessing, Modifying or Executing Executable Files
An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
Blue Boxing
This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
Restful Privilege Elevation
Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
Target Programs with Elevated Privileges
This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Exploit-Db

description	PHP 5.2.6 (error_log) safe_mode Bypass Vulnerability. CVE-2006-3011,CVE-2008-5625. Local exploits for multiple platform
file	exploits/multiple/local/7171.txt
id	EDB-ID:7171
last seen	2016-02-01
modified	2008-11-20
platform	multiple
port
published	2008-11-20
reporter	SecurityReason
source	https://www.exploit-db.com/download/7171/
title	PHP 5.2.6 error_log safe_mode Bypass Vulnerability
type	local

Nessus

NASL family	Mandriva Local Security Checks
NASL id	MANDRAKE_MDKSA-2006-122.NASL
description	Multiple buffer overflows in the gd graphics library (libgd) 2.0.21 and earlier may allow remote attackers to execute arbitrary code via malformed image files that trigger the overflows due to improper calls to the gdMalloc function. One instance in gd_io_dp.c does not appear to be corrected in the embedded copy of GD used in php to build the php-gd package. (CVE-2004-0941) Integer overflows were reported in the GD Graphics Library (libgd) 2.0.28, and possibly other versions. These overflows allow remote attackers to cause a denial of service and possibly execute arbitrary code via PNG image files with large image rows values that lead to a heap-based buffer overflow in the gdImageCreateFromPngCtx() function. PHP, as packaged in Mandriva Linux, contains an embedded copy of the GD library, used to build the php-gd package. (CVE-2004-0990) The c-client library 2000, 2001, or 2004 for PHP 3.x, 4.x, and 5.x, when used in applications that accept user-controlled input for the mailbox argument to the imap_open function, allow remote attackers to obtain access to an IMAP stream data structure and conduct unauthorized IMAP actions. (CVE-2006-1017) Integer overflow in the wordwrap function in string.c in might allow context-dependent attackers to execute arbitrary code via certain long arguments that cause a small buffer to be allocated, which triggers a heap-based buffer overflow in a memcpy function call, a different vulnerability than CVE-2002-1396. (CVE-2006-1990) The previous update for this issue did not resolve the issue on 64bit platforms. The cURL library (libcurl) in PHP 4.4.2 and 5.1.4 allows attackers to bypass safe mode and read files via a file:// request containing nul characters. (CVE-2006-2563) Buffer consumption vulnerability in the tempnam function in PHP 5.1.4 and 4.x before 4.4.3 allows local users to bypass restrictions and create PHP files with fixed names in other directories via a pathname argument longer than MAXPATHLEN, which prevents a unique string from being appended to the filename. (CVE-2006-2660) The LZW decoding in the gdImageCreateFromGifPtr function in the Thomas Boutell graphics draw (GD) library (aka libgd) 2.0.33 allows remote attackers to cause a denial of service (CPU consumption) via malformed GIF data that causes an infinite loop. PHP, as packaged in Mandriva Linux, contains an embedded copy of the GD library, used to build the php-gd package. (CVE-2006-2906) The error_log function in PHP allows local users to bypass safe mode and open_basedir restrictions via a
last seen	2020-06-01
modified	2020-06-02
plugin id	22053
published	2006-07-17
reporter	This script is Copyright (C) 2006-2019 Tenable Network Security, Inc.
source	https://www.tenable.com/plugins/nessus/22053
title	Mandrake Linux Security Advisory : php (MDKSA-2006:122)
code	#%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Mandrake Linux Security Advisory MDKSA-2006:122. # The text itself is copyright (C) Mandriva S.A. # if (NASL_LEVEL < 3000) exit(0); include("compat.inc"); if (description) { script_id(22053); script_version ("1.18"); script_cvs_date("Date: 2019/08/02 13:32:48"); script_cve_id("CVE-2004-0941", "CVE-2004-0990", "CVE-2006-1017", "CVE-2006-1990", "CVE-2006-1991", "CVE-2006-2563", "CVE-2006-2660", "CVE-2006-2906", "CVE-2006-3011", "CVE-2006-3016", "CVE-2006-3017", "CVE-2006-3018", "CVE-2006-4482", "CVE-2006-4483", "CVE-2006-4486"); script_bugtraq_id(11523); script_xref(name:"MDKSA", value:"2006:122"); script_name(english:"Mandrake Linux Security Advisory : php (MDKSA-2006:122)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value: "The remote Mandrake Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Multiple buffer overflows in the gd graphics library (libgd) 2.0.21 and earlier may allow remote attackers to execute arbitrary code via malformed image files that trigger the overflows due to improper calls to the gdMalloc function. One instance in gd_io_dp.c does not appear to be corrected in the embedded copy of GD used in php to build the php-gd package. (CVE-2004-0941) Integer overflows were reported in the GD Graphics Library (libgd) 2.0.28, and possibly other versions. These overflows allow remote attackers to cause a denial of service and possibly execute arbitrary code via PNG image files with large image rows values that lead to a heap-based buffer overflow in the gdImageCreateFromPngCtx() function. PHP, as packaged in Mandriva Linux, contains an embedded copy of the GD library, used to build the php-gd package. (CVE-2004-0990) The c-client library 2000, 2001, or 2004 for PHP 3.x, 4.x, and 5.x, when used in applications that accept user-controlled input for the mailbox argument to the imap_open function, allow remote attackers to obtain access to an IMAP stream data structure and conduct unauthorized IMAP actions. (CVE-2006-1017) Integer overflow in the wordwrap function in string.c in might allow context-dependent attackers to execute arbitrary code via certain long arguments that cause a small buffer to be allocated, which triggers a heap-based buffer overflow in a memcpy function call, a different vulnerability than CVE-2002-1396. (CVE-2006-1990) The previous update for this issue did not resolve the issue on 64bit platforms. The cURL library (libcurl) in PHP 4.4.2 and 5.1.4 allows attackers to bypass safe mode and read files via a file:// request containing nul characters. (CVE-2006-2563) Buffer consumption vulnerability in the tempnam function in PHP 5.1.4 and 4.x before 4.4.3 allows local users to bypass restrictions and create PHP files with fixed names in other directories via a pathname argument longer than MAXPATHLEN, which prevents a unique string from being appended to the filename. (CVE-2006-2660) The LZW decoding in the gdImageCreateFromGifPtr function in the Thomas Boutell graphics draw (GD) library (aka libgd) 2.0.33 allows remote attackers to cause a denial of service (CPU consumption) via malformed GIF data that causes an infinite loop. PHP, as packaged in Mandriva Linux, contains an embedded copy of the GD library, used to build the php-gd package. (CVE-2006-2906) The error_log function in PHP 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-2006-3011) An unspecified vulnerability in session.c in PHP before 5.1.3 has unknown impact and attack vectors, related to 'certain characters in session names', including special characters that are frequently associated with CRLF injection, SQL injection, and cross-site scripting (XSS) vulnerabilities. NOTE: while the nature of the vulnerability is unspecified, it is likely that this is related to a violation of an expectation by PHP applications that the session name is alphanumeric, as implied in the PHP manual for session_name(). (CVE-2006-3016) An unspecified vulnerability in PHP before 5.1.3 can prevent a variable from being unset even when the unset function is called, which might cause the variable's value to be used in security-relevant operations. (CVE-2006-3017) An unspecified vulnerability in the session extension functionality in PHP before 5.1.3 has unkown impact and attack vectors related to heap corruption. (CVE-2006-3018) Multiple heap-based buffer overflows in the (1) str_repeat and (2) wordwrap functions in ext/standard/string.c in PHP before 5.1.5, when used on a 64-bit system, have unspecified impact and attack vectors, a different vulnerability than CVE-2006-1990. (CVE-2006-4482) The cURL extension files (1) ext/curl/interface.c and (2) ext/curl/streams.c in PHP before 5.1.5 permit the CURLOPT_FOLLOWLOCATION option when open_basedir or safe_mode is enabled, which allows attackers to perform unauthorized actions, possibly related to the realpath cache. (CVE-2006-4483) Unspecified vulnerability in PHP before 5.1.6, when running on a 64-bit system, has unknown impact and attack vectors related to the memory_limit restriction. (CVE-2006-4486) The GD related issues (CVE-2004-0941, CVE-2004-0990, CVE-2006-2906) affect only Corporate 3 and Mandrake Network Firewall 2. The php-curl issues (CVE-2006-2563, CVE-2006-4483) affect only Mandriva 2006.0. Updated packages have been patched to address all these issues. Once these packages have been installed, you will need to restart Apache (service httpd restart) in order for the changes to take effect." ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:ND"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_cwe_id(119); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64php5_common5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64php_common432"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libphp5_common5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libphp_common432"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php-cgi"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php-cli"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php-curl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php-fcgi"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php-imap"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php432-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2006"); script_set_attribute(attribute:"cpe", value:"x-cpe:/o:mandrakesoft:mandrake_linux:le2005"); script_set_attribute(attribute:"patch_publication_date", value:"2006/07/13"); script_set_attribute(attribute:"plugin_publication_date", value:"2006/07/17"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2006-2019 Tenable Network Security, Inc."); script_family(english:"Mandriva Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux"); if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^(amd64\|i[3-6]86\|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu); flag = 0; if (rpm_check(release:"MDK10.2", cpu:"x86_64", reference:"lib64php_common432-4.3.10-7.14.102mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK10.2", cpu:"i386", reference:"libphp_common432-4.3.10-7.14.102mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK10.2", reference:"php-cgi-4.3.10-7.14.102mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK10.2", reference:"php-cli-4.3.10-7.14.102mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK10.2", reference:"php-imap-4.3.10-6.3.102mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK10.2", reference:"php432-devel-4.3.10-7.14.102mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", cpu:"x86_64", reference:"lib64php5_common5-5.0.4-9.12.20060mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", cpu:"i386", reference:"libphp5_common5-5.0.4-9.12.20060mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", reference:"php-cgi-5.0.4-9.12.20060mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", reference:"php-cli-5.0.4-9.12.20060mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", reference:"php-curl-5.0.4-1.3.20060mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", reference:"php-devel-5.0.4-9.12.20060mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", reference:"php-fcgi-5.0.4-9.12.20060mdk", yank:"mdk")) flag++; if (rpm_check(release:"MDK2006.0", reference:"php-imap-5.0.4-2.3.20060mdk", yank:"mdk")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");

NASL family	CGI abuses
NASL id	PHP_4_4_3.NASL
description	According to its banner, the version of PHP installed on the remote host is older than 4.4.3 / 5.1.4. Such versions may be affected by several issues, including a buffer overflow, heap corruption, and a flaw by which a variable may survive a call to
last seen	2020-06-01
modified	2020-06-02
plugin id	22268
published	2006-08-25
reporter	This script is Copyright (C) 2006-2018 Tenable Network Security, Inc.
source	https://www.tenable.com/plugins/nessus/22268
title	PHP < 4.4.3 / 5.1.4 Multiple Vulnerabilities

NASL family	Ubuntu Local Security Checks
NASL id	UBUNTU_USN-320-1.NASL
description	The phpinfo() PHP function did not properly sanitize long strings. A remote attacker could use this to perform cross-site scripting attacks against sites that have publicly-available PHP scripts that call phpinfo(). Please note that it is not recommended to publicly expose phpinfo(). (CVE-2006-0996) An information disclosure has been reported in the html_entity_decode() function. A script which uses this function to process arbitrary user-supplied input could be exploited to expose a random part of memory, which could potentially reveal sensitive data. (CVE-2006-1490) The wordwrap() function did not sufficiently check the validity of the
last seen	2020-06-01
modified	2020-06-02
plugin id	27897
published	2007-11-10
reporter	Ubuntu Security Notice (C) 2007-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/27897
title	Ubuntu 5.04 / 5.10 / 6.06 LTS : php4, php5 vulnerabilities (USN-320-1)

Seebug

bulletinFamily	exploit
description	BUGTRAQ ID: 18645 CVE(CAN) ID: CVE-2006-3011 PHP是广泛使用的通用目的脚本语言，特别适合于Web开发，可嵌入到HTML中。 PHP的error_log()函数中存在安全模式限制绕过漏洞： PHP5: - -2013-2050--- PHPAPI int _php_error_log(int opt_err, char message, char opt, char headers TSRMLS_DC) php_stream stream = NULL; switch (opt_err) { case 1: /send an email / { #if HAVE_SENDMAIL if (!php_mail(opt, "PHP error_log message", message, headers, NULL TSRMLS_CC)) { return FAILURE; } #else php_error_docref(NULL TSRMLS_CC, E_WARNING, "Mail option not available!"); return FAILURE; #endif } break; case 2: /send to an address / php_error_docref(NULL TSRMLS_CC, E_WARNING, "TCP/IP option not available!"); return FAILURE; break; case 3: /save to a file / stream = php_stream_open_wrapper(opt, "a", IGNORE_URL \| ENFORCE_SAFE_MODE \| REPORT_ERROR S, NULL); if (!stream) return FAILURE; php_stream_write(stream, message, strlen(message)); php_stream_close(stream); break; default: php_log_err(message TSRMLS_CC); break; } return SUCCESS; - -2013-2050--- 在选项3中： - -2038 line--- stream = php_stream_open_wrapper(opt, "a", IGNORE_URL \| ENFORCE_SAFE_MODE \| REPORT_ERRORS, NULL); - -2038 line--- 漏洞存在于php_stream_open_wrapper()。如果用户提供了“prefix://../../”的话，IGNORE_URL就会关闭safe_mode。 - -示例--- cxib# php -r 'error_log("<? echo \"cx\"; ?>", 3, "/www/temp/sr.php" );' Warning: error_log(): SAFE MODE Restriction in effect. The script whose uid is 0 is not allowed to a ccess /www/temp owned by uid 80 in Command line code on line 1 Warning: error_log(/www/temp/sr.php): failed to open stream: Invalid argument in Command line code on line 1 cxib# php -r 'error_log("<? echo \"cx\"; ?>", 3, "php://../../www/temp /sr.php");' cxib# ls -la /www/temp/sr.php - -rw-r--r-- 1 cxib www 16 Jun 11 17:47 /www/temp/sr.php cxib# 拥有加载任意PHP代码或指定error_log()函数调用参数权限的用户可以利用这个漏洞从目标系统读取或写入受限文件。 PHP PHP 5.1.4 PHP PHP 4.4.2 PHP --- 目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本： <a href=http://www.php.net target=_blank>http://www.php.net</a>
id	SSV:2704
last seen	2017-11-19
modified	2007-12-26
published	2007-12-26
reporter	Root
source	https://www.seebug.org/vuldb/ssvid-2704
title	PHP error_log()安全模式限制绕过漏洞

Statements

contributor	Mark J Cox
lastmodified	2006-09-20
organization	Red Hat
statement	We do not consider these to be security issues. For more details see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1 and http://www.php.net/security-note.php

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit-Db

Nessus

Seebug

Statements

References