Vulnerabilities > CVE-2009-2854 - Permissions, Privileges, and Access Controls vulnerability in Wordpress

047910
CVSS 6.4 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
NONE
network
low complexity
wordpress
CWE-264
nessus

Summary

Wordpress before 2.8.3 does not check capabilities for certain actions, which allows remote attackers to make unauthorized edits or additions via a direct request to (1) edit-comments.php, (2) edit-pages.php, (3) edit.php, (4) edit-category-form.php, (5) edit-link-category-form.php, (6) edit-tag-form.php, (7) export.php, (8) import.php, or (9) link-add.php in wp-admin/.

Vulnerable Configurations

Part Description Count
Application
Wordpress
161

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 familyDebian Local Security Checks
NASL idDEBIAN_DSA-1871.NASL
descriptionSeveral vulnerabilities have been discovered in wordpress, weblog manager. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2008-6762 It was discovered that wordpress is prone to an open redirect vulnerability which allows remote attackers to conduct phishing attacks. - CVE-2008-6767 It was discovered that remote attackers had the ability to trigger an application upgrade, which could lead to a denial of service attack. - CVE-2009-2334 It was discovered that wordpress lacks authentication checks in the plugin configuration, which might leak sensitive information. - CVE-2009-2854 It was discovered that wordpress lacks authentication checks in various actions, thus allowing remote attackers to produce unauthorised edits or additions. - CVE-2009-2851 It was discovered that the administrator interface is prone to a cross-site scripting attack. - CVE-2009-2853 It was discovered that remote attackers can gain privileges via certain direct requests. - CVE-2008-1502 It was discovered that the _bad_protocol_once function in KSES, as used by wordpress, allows remote attackers to perform cross-site scripting attacks. - CVE-2008-4106 It was discovered that wordpress lacks certain checks around user information, which could be used by attackers to change the password of a user. - CVE-2008-4769 It was discovered that the get_category_template function is prone to a directory traversal vulnerability, which could lead to the execution of arbitrary code. - CVE-2008-4796 It was discovered that the _httpsrequest function in the embedded snoopy version is prone to the execution of arbitrary commands via shell metacharacters in https URLs. - CVE-2008-5113 It was discovered that wordpress relies on the REQUEST superglobal array in certain dangerous situations, which makes it easier to perform attacks via crafted cookies.
last seen2020-06-01
modified2020-06-02
plugin id44736
published2010-02-24
reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/44736
titleDebian DSA-1871-1 : wordpress - 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-1871. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(44736);
  script_version("1.20");
  script_cvs_date("Date: 2019/08/02 13:32:22");

  script_cve_id("CVE-2008-1502", "CVE-2008-4106", "CVE-2008-4769", "CVE-2008-4796", "CVE-2008-5113", "CVE-2008-6762", "CVE-2008-6767", "CVE-2009-2334", "CVE-2009-2851", "CVE-2009-2853", "CVE-2009-2854");
  script_bugtraq_id(28599, 31068, 31887, 35584, 35935);
  script_xref(name:"DSA", value:"1871");

  script_name(english:"Debian DSA-1871-1 : wordpress - 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 wordpress, weblog
manager. The Common Vulnerabilities and Exposures project identifies
the following problems :

  - CVE-2008-6762
    It was discovered that wordpress is prone to an open
    redirect vulnerability which allows remote attackers to
    conduct phishing attacks.

  - CVE-2008-6767
    It was discovered that remote attackers had the ability
    to trigger an application upgrade, which could lead to a
    denial of service attack.

  - CVE-2009-2334
    It was discovered that wordpress lacks authentication
    checks in the plugin configuration, which might leak
    sensitive information.

  - CVE-2009-2854
    It was discovered that wordpress lacks authentication
    checks in various actions, thus allowing remote
    attackers to produce unauthorised edits or additions.

  - CVE-2009-2851
    It was discovered that the administrator interface is
    prone to a cross-site scripting attack.

  - CVE-2009-2853
    It was discovered that remote attackers can gain
    privileges via certain direct requests.

  - CVE-2008-1502
    It was discovered that the _bad_protocol_once function
    in KSES, as used by wordpress, allows remote attackers
    to perform cross-site scripting attacks.

  - CVE-2008-4106
    It was discovered that wordpress lacks certain checks
    around user information, which could be used by
    attackers to change the password of a user.

  - CVE-2008-4769
    It was discovered that the get_category_template
    function is prone to a directory traversal
    vulnerability, which could lead to the execution of
    arbitrary code.

  - CVE-2008-4796
    It was discovered that the _httpsrequest function in the
    embedded snoopy version is prone to the execution of
    arbitrary commands via shell metacharacters in https
    URLs.

  - CVE-2008-5113
    It was discovered that wordpress relies on the REQUEST
    superglobal array in certain dangerous situations, which
    makes it easier to perform attacks via crafted cookies."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=531736"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=536724"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=504243"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=500115"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=504234"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=504771"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-6762"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-6767"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2009-2334"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2009-2854"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2009-2851"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2009-2853"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-1502"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-4106"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-4769"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-4796"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-5113"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2009/dsa-1871"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the wordpress packages.

For the oldstable distribution (etch), these problems have been fixed
in version 2.0.10-1etch4.

For the stable distribution (lenny), these problems have been fixed in
version 2.5.1-11+lenny1."
  );
  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:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"d2_elliot_name", value:"Moodle <= 1.8.4 RCE");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'D2ExploitPack');
  script_cwe_id(20, 22, 59, 79, 94, 264, 287, 352);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wordpress");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/03/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/08/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/02/24");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"4.0", prefix:"wordpress", reference:"2.0.10-1etch4")) flag++;
if (deb_check(release:"5.0", prefix:"wordpress", reference:"2.5.1-11+lenny1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 35935 CVE(CAN) ID: CVE-2009-2853,CVE-2009-2854 WordPress是一款免费的论坛Blog系统。 Wordpress没有检查用户对某些操作的权限,远程攻击者可以通过直接请求wp-admin/中的edit-comments.php、edit- pages.php、edit.php、edit-category-form.php、edit-link-category-form.php、 edit-tag-form.php、export.php、import.php或link-add.php执行非授权编辑或添加操作,或通过直接请求 admin-footer.php、edit-category-form.php、edit-form-advanced.php、edit- form-comment.php、edit-link-category-form.php、edit-link-form.php、edit- page-form.php或edit-tag-form.php获得管理权限提升。 WordPress &lt; 2.8.3 厂商补丁: Debian ------ Debian已经为此发布了一个安全公告(DSA-1871-1)以及相应补丁: DSA-1871-1:New wordpress packages fix several vulnerabilities 链接:http://www.debian.org/security/2009/dsa-1871 补丁下载: Source archives: http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10-1etch4.diff.gz Size/MD5 checksum: 50984 45349b0822fc376b8cfef51b5cec3510 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10.orig.tar.gz Size/MD5 checksum: 520314 e9d5373b3c6413791f864d56b473dd54 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10-1etch4.dsc Size/MD5 checksum: 607 d9389cbc71eee6f08b15762a97c9d537 Architecture independent packages: http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10-1etch4_all.deb Size/MD5 checksum: 521060 71a6aea482d0e7afb9c82701bef336e9 Debian GNU/Linux 5.0 alias lenny - -------------------------------- Debian (stable) - --------------- Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc. Source archives: http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1-11+lenny1.dsc Size/MD5 checksum: 1051 46d9daad717f36918e2709757523f6eb http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1.orig.tar.gz Size/MD5 checksum: 1181886 b1a40387006e54dcbd963d0cb5da0df4 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1-11+lenny1.diff.gz Size/MD5 checksum: 702119 07658ad36bed8829f58b1b6223eac294 Architecture independent packages: http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1-11+lenny1_all.deb Size/MD5 checksum: 1029028 2d30e38e22761f87e23d2c85120bb1ff 补丁安装方法: 1. 手工安装补丁包: 首先,使用下面的命令来下载补丁软件: # wget url (url是补丁下载链接地址) 然后,使用下面的命令来安装补丁: # dpkg -i file.deb (file是相应的补丁名) 2. 使用apt-get自动安装补丁包: 首先,使用下面的命令更新内部数据库: # apt-get update 然后,使用下面的命令安装更新软件包: # apt-get upgrade WordPress --------- 目前厂商已经发布了升级补丁以修复这个安全问题,请到厂商的主页下载: http://wordpress.org/development/2009/08/wordpress-2-8-3-security-release/
idSSV:12165
last seen2017-11-19
modified2009-09-02
published2009-09-02
reporterRoot
titleWordPress wp-admin非授权管理访问漏洞