Vulnerabilities > CVE-2010-1190 - Permissions, Privileges, and Access Controls vulnerability in Mediawiki
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
NONE Availability impact
NONE Summary
thumb.php in MediaWiki before 1.15.2, when used with access-restriction mechanisms such as img_auth.php, does not check user permissions before providing scaled images, which allows remote attackers to bypass intended access restrictions and read private images via unspecified manipulations.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
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.
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2022.NASL description Several vulnerabilities have been discovered in mediawiki, a web-based wiki engine. The following issues have been identified : - Insufficient input sanitization in the CSS validation code allows editors to display external images in wiki pages. This can be a privacy concern on public wikis as it allows attackers to gather IP addresses and other information by linking these images to a web server under their control. - Insufficient permission checks have been found in thump.php which can lead to disclosure of image files that are restricted to certain users (e.g. with img_auth.php). last seen 2020-06-01 modified 2020-06-02 plugin id 45337 published 2010-03-25 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/45337 title Debian DSA-2022-1 : mediawiki - several vulnerabilities code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DSA-2022. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(45337); script_version("1.10"); script_cvs_date("Date: 2019/08/02 13:32:22"); script_cve_id("CVE-2010-1189", "CVE-2010-1190"); script_bugtraq_id(38617, 38621); script_xref(name:"DSA", value:"2022"); script_name(english:"Debian DSA-2022-1 : mediawiki - several vulnerabilities"); script_summary(english:"Checks dpkg output for the updated package"); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Several vulnerabilities have been discovered in mediawiki, a web-based wiki engine. The following issues have been identified : - Insufficient input sanitization in the CSS validation code allows editors to display external images in wiki pages. This can be a privacy concern on public wikis as it allows attackers to gather IP addresses and other information by linking these images to a web server under their control. - Insufficient permission checks have been found in thump.php which can lead to disclosure of image files that are restricted to certain users (e.g. with img_auth.php)." ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2010/dsa-2022" ); script_set_attribute( attribute:"solution", value: "For the stable distribution (lenny), these problems have been fixed in version 1.12.0-2lenny4." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mediawiki"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0"); script_set_attribute(attribute:"patch_publication_date", value:"2010/03/23"); script_set_attribute(attribute:"plugin_publication_date", value:"2010/03/25"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"5.0", prefix:"mediawiki", reference:"1.12.0-2lenny4")) flag++; if (deb_check(release:"5.0", prefix:"mediawiki-math", reference:"1.12.0-2lenny4")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");NASL family Fedora Local Security Checks NASL id FEDORA_2010-6335.NASL description This is a security and bugfix release of MediaWiki 1.15.3. Three security issues are fixed in this update: A CSS validation issue was discovered which allows editors to display external images in wiki pages. A data leakage vulnerability was discovered in thumb.php which affects wikis which restrict access to private files using img_auth.php, or some similar scheme. MediaWiki was found to be vulnerable to login CSRF. The upstrea authors recommend that all public wikis should be upgraded if possible. The fix includes a breaking change to the API login action. Any clients using it will need to be updated. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 47615 published 2010-07-07 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/47615 title Fedora 12 : mediawiki-1.15.3-53.fc12 (2010-6335) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2010-6335. # include("compat.inc"); if (description) { script_id(47615); script_version("1.10"); script_cvs_date("Date: 2019/08/02 13:32:33"); script_cve_id("CVE-2010-1189", "CVE-2010-1190"); script_bugtraq_id(38617, 38621); script_xref(name:"FEDORA", value:"2010-6335"); script_name(english:"Fedora 12 : mediawiki-1.15.3-53.fc12 (2010-6335)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "This is a security and bugfix release of MediaWiki 1.15.3. Three security issues are fixed in this update: A CSS validation issue was discovered which allows editors to display external images in wiki pages. A data leakage vulnerability was discovered in thumb.php which affects wikis which restrict access to private files using img_auth.php, or some similar scheme. MediaWiki was found to be vulnerable to login CSRF. The upstrea authors recommend that all public wikis should be upgraded if possible. The fix includes a breaking change to the API login action. Any clients using it will need to be updated. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=571926" ); # https://lists.fedoraproject.org/pipermail/package-announce/2010-July/043799.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?1bb667e0" ); script_set_attribute( attribute:"solution", value:"Update the affected mediawiki package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mediawiki"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:12"); script_set_attribute(attribute:"patch_publication_date", value:"2010/04/10"); script_set_attribute(attribute:"plugin_publication_date", value:"2010/07/07"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^12([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 12.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC12", reference:"mediawiki-1.15.3-53.fc12")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mediawiki"); }NASL family SuSE Local Security Checks NASL id SUSE_11_0_MEDIAWIKI-100423.NASL description MediaWiki was prone to a CSS validation flaw and data leakage vulnerability (CVE-2010-1189, CVE-2010-1190). last seen 2020-06-01 modified 2020-06-02 plugin id 46008 published 2010-04-27 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/46008 title openSUSE Security Update : mediawiki (openSUSE-SU-2010:0154-1) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update mediawiki-2356. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(46008); script_version("1.7"); script_cvs_date("Date: 2019/10/25 13:36:37"); script_cve_id("CVE-2010-1189", "CVE-2010-1190"); script_name(english:"openSUSE Security Update : mediawiki (openSUSE-SU-2010:0154-1)"); script_summary(english:"Check for the mediawiki-2356 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "MediaWiki was prone to a CSS validation flaw and data leakage vulnerability (CVE-2010-1189, CVE-2010-1190)." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=592574" ); script_set_attribute( attribute:"see_also", value:"https://lists.opensuse.org/opensuse-updates/2010-04/msg00081.html" ); script_set_attribute( attribute:"solution", value:"Update the affected mediawiki package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:mediawiki"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.0"); script_set_attribute(attribute:"patch_publication_date", value:"2010/04/23"); script_set_attribute(attribute:"plugin_publication_date", value:"2010/04/27"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); 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); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE11\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.0", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE11.0", reference:"mediawiki-1.11.2-36.4") ) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mediawiki"); }
References
- http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00006.html
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2010-March/000088.html
- http://secunia.com/advisories/39022
- http://secunia.com/advisories/39656
- http://svn.wikimedia.org/svnroot/mediawiki/tags/REL1_15_2/phase3/RELEASE-NOTES
- http://www.debian.org/security/2010/dsa-2022
- http://www.vupen.com/english/advisories/2010/0685
- http://www.vupen.com/english/advisories/2010/1001