Vulnerabilities > CVE-2008-3741 - Cross-Site Scripting vulnerability in Drupal

047910
CVSS 3.5 - LOW
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
drupal
CWE-79
nessus
NVD
Published: 2008-08-27
Updated: 2017-08-08

Summary

The private filesystem in Drupal 5.x before 5.10 and 6.x before 6.4 trusts the MIME type sent by a web browser, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks by uploading files containing arbitrary web script or HTML.

Vulnerable Configurations

Part Description Count
Application
Drupal
14

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Embedding Scripts in Non-Script Elements
    This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an attacker to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote attacker to collect and interpret the output of said attack.
  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Cross-Site Scripting in Error Pages
    An attacker distributes a link (or possibly some other query structure) with a request to a third party web server that is malformed and also contains a block of exploit code in order to have the exploit become live code in the resulting error page. When the third party web server receives the crafted request and notes the error it then creates an error message that echoes the malformed message, including the exploit. Doing this converts the exploit portion of the message into to valid language elements that are executed by the viewing browser. When a victim executes the query provided by the attacker the infected error message error message is returned including the exploit code which then runs in the victim's browser. XSS can result in execution of code as well as data leakage (e.g. session cookies can be sent to the attacker). This type of attack is especially dangerous since the exploit appears to come from the third party web server, who the victim may trust and hence be more vulnerable to deception.
  • Cross-Site Scripting Using Alternate Syntax
    The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2008-7626.NASL
    descriptionUpdate to 6.4, security fixes: SA-2008-047 (http://drupal.org/node/295053) - multiple XSS issues (CVE-2008-3740, CVE-2008-3741) - unrestricted upload vulnerability (CVE-2008-3742) - multiple CSRF issues (CVE-2008-3743, CVE-2008-3744) - upload module privilege escalation (CVE-2008-3745) Remember to log in to your site as the admin user before upgrading this package. After upgrading the package, browse to http://host/drupal/update.php to run the upgrade script. 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 seen2020-06-01
    modified2020-06-02
    plugin id34138
    published2008-09-10
    reporterThis script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/34138
    titleFedora 9 : drupal-6.4-1.fc9 (2008-7626)
    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 2008-7626.
#

include("compat.inc");

if (description)
{
  script_id(34138);
  script_version ("1.16");
  script_cvs_date("Date: 2019/08/02 13:32:28");

  script_cve_id("CVE-2008-3740", "CVE-2008-3741", "CVE-2008-3742", "CVE-2008-3743", "CVE-2008-3744", "CVE-2008-3745");
  script_bugtraq_id(30689);
  script_xref(name:"FEDORA", value:"2008-7626");

  script_name(english:"Fedora 9 : drupal-6.4-1.fc9 (2008-7626)");
  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:
"Update to 6.4, security fixes: SA-2008-047
(http://drupal.org/node/295053) - multiple XSS issues (CVE-2008-3740,
CVE-2008-3741) - unrestricted upload vulnerability (CVE-2008-3742) -
multiple CSRF issues (CVE-2008-3743, CVE-2008-3744) - upload module
privilege escalation (CVE-2008-3745) Remember to log in to your site
as the admin user before upgrading this package. After upgrading the
package, browse to http://host/drupal/update.php to run the upgrade
script.

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:"http://drupal.org/node/295053"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=459108"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2008-September/014039.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6ab2442c"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected drupal package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  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_cwe_id(79, 264, 352);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:drupal");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:9");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/09/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/09/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 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:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 9.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:"FC9", reference:"drupal-6.4-1.fc9")) 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, "drupal");
}
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_070B5B226D7411DDAA180030843D3802.NASL
    descriptionThe Drupal Project reports : A bug in the output filter employed by Drupal makes it possible for malicious users to insert script code into pages (cross site scripting or XSS). A bug in the private filesystem trusts the MIME type sent by the browser, enabling malicious users with the ability to upload files to execute cross site scripting attacks. The BlogAPI module does not validate the extension of uploaded files, enabling users with the
    last seen2020-06-01
    modified2020-06-02
    plugin id33935
    published2008-08-19
    reporterThis script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/33935
    titleFreeBSD : drupal -- multiple vulnerabilities (070b5b22-6d74-11dd-aa18-0030843d3802)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(33935);
  script_version("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:39");

  script_cve_id("CVE-2008-3740", "CVE-2008-3741", "CVE-2008-3742", "CVE-2008-3743", "CVE-2008-3744", "CVE-2008-3745");
  script_xref(name:"Secunia", value:"31462");

  script_name(english:"FreeBSD : drupal -- multiple vulnerabilities (070b5b22-6d74-11dd-aa18-0030843d3802)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The Drupal Project reports :

A bug in the output filter employed by Drupal makes it possible for
malicious users to insert script code into pages (cross site scripting
or XSS). A bug in the private filesystem trusts the MIME type sent by
the browser, enabling malicious users with the ability to upload files
to execute cross site scripting attacks.

The BlogAPI module does not validate the extension of uploaded files,
enabling users with the 'administer content with blog api' permission
to upload harmful files. This bug affects both Drupal 5.x and 6.x.

Drupal forms contain a token to protect against cross site request
forgeries (CSRF). The token may not be validated properly for cached
forms and forms containing AHAH elements. This bug affects Drupal 6.x.

User access rules can be added or deleted upon accessing a properly
formatted URL, making such modifications vulnerable to cross site
request forgeries (CSRF). This may lead to unintended addition or
deletion of an access rule when a sufficiently privileged user visits
a page or site created by a malicious person. This bug affects both
Drupal 5.x and 6.x.

The Upload module in Drupal 6 contains privilege escalation
vulnerabilities for users with the 'upload files' permission. This can
lead to users being able to edit nodes which they are normally not
allowed to, delete any file to which the webserver has sufficient
rights, and download attachments of nodes to which they have no
access. Harmful files may also be uploaded via cross site request
forgeries (CSRF). These bugs affect Drupal 6.x."
  );
  # https://vuxml.freebsd.org/freebsd/070b5b22-6d74-11dd-aa18-0030843d3802.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?64c9a59e"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  script_cwe_id(79, 264, 352);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:drupal5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:drupal6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/08/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/08/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/08/19");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"drupal5<5.10")) flag++;
if (pkg_test(save_report:TRUE, pkg:"drupal6<6.4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2008-7467.NASL
    descriptionUpdate to 5.10, security fixes: SA-2008-047 (http://drupal.org/node/295053) - multiple XSS issues (CVE-2008-3740, CVE-2008-3741) - unrestricted upload vulnerability (CVE-2008-3742) - multiple CSRF issues (CVE-2008-3744) Remember to log in to your site as the admin user before upgrading this package. After upgrading the package, browse to http://host/drupal/update.php to run the upgrade script. 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 seen2020-06-01
    modified2020-06-02
    plugin id34132
    published2008-09-10
    reporterThis script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/34132
    titleFedora 8 : drupal-5.10-1.fc8 (2008-7467)
    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 2008-7467.
#

include("compat.inc");

if (description)
{
  script_id(34132);
  script_version ("1.16");
  script_cvs_date("Date: 2019/08/02 13:32:28");

  script_cve_id("CVE-2008-3740", "CVE-2008-3741", "CVE-2008-3742", "CVE-2008-3743", "CVE-2008-3744", "CVE-2008-3745");
  script_bugtraq_id(30689);
  script_xref(name:"FEDORA", value:"2008-7467");

  script_name(english:"Fedora 8 : drupal-5.10-1.fc8 (2008-7467)");
  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:
"Update to 5.10, security fixes: SA-2008-047
(http://drupal.org/node/295053)

  - multiple XSS issues (CVE-2008-3740, CVE-2008-3741) -
    unrestricted upload vulnerability (CVE-2008-3742) -
    multiple CSRF issues (CVE-2008-3744) Remember to log in
    to your site as the admin user before upgrading this
    package. After upgrading the package, browse to
    http://host/drupal/update.php to run the upgrade script.

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:"http://drupal.org/node/295053"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=459108"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2008-September/013790.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?64e06c6c"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected drupal package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  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_cwe_id(79, 264, 352);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:drupal");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:8");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/09/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/09/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 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:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 8.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:"FC8", reference:"drupal-5.10-1.fc8")) 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, "drupal");
}

References