Vulnerabilities > CVE-2010-1617 - Permissions, Privileges, and Access Controls vulnerability in Moodle

047910
CVSS 4.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
SINGLE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
low complexity
moodle
CWE-264
nessus

Summary

user/view.php in Moodle 1.8.x before 1.8.12 and 1.9.x before 1.9.8 does not properly check a role, which allows remote authenticated users to obtain the full names of other users via the course profile page.

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-2115.NASL
    descriptionSeveral remote vulnerabilities have been discovered in Moodle, a course management system. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2010-1613 Moodle does not enable the
    last seen2020-06-01
    modified2020-06-02
    plugin id49717
    published2010-10-06
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/49717
    titleDebian DSA-2115-1 : moodle - 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-2115. The text 
    # itself is copyright (C) Software in the Public Interest, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(49717);
      script_version("1.12");
      script_cvs_date("Date: 2019/08/02 13:32:23");
    
      script_cve_id("CVE-2010-1613", "CVE-2010-1614", "CVE-2010-1615", "CVE-2010-1616", "CVE-2010-1617", "CVE-2010-1618", "CVE-2010-1619", "CVE-2010-2228", "CVE-2010-2229", "CVE-2010-2230", "CVE-2010-2231");
      script_bugtraq_id(39150, 40944);
      script_xref(name:"DSA", value:"2115");
    
      script_name(english:"Debian DSA-2115-1 : moodle - 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 remote vulnerabilities have been discovered in Moodle, a
    course management system. The Common Vulnerabilities and Exposures
    project identifies the following problems :
    
      - CVE-2010-1613
        Moodle does not enable the 'Regenerate session id during
        login' setting by default, which makes it easier for
        remote attackers to conduct session fixation attacks.
    
      - CVE-2010-1614
        Multiple cross-site scripting (XSS) vulnerabilities
        allow remote attackers to inject arbitrary web script or
        HTML via vectors related to (1) the Login-As feature or
        (2) when the global search feature is enabled,
        unspecified global search forms in the Global Search
        Engine.
    
      - CVE-2010-1615
        Multiple SQL injection vulnerabilities allow remote
        attackers to execute arbitrary SQL commands via vectors
        related to (1) the add_to_log function in
        mod/wiki/view.php in the wiki module, or (2) 'data
        validation in some forms elements' related to
        lib/form/selectgroups.php.
    
      - CVE-2010-1616
        Moodle can create new roles when restoring a course,
        which allows teachers to create new accounts even if
        they do not have the moodle/user:create capability.
    
      - CVE-2010-1617
        user/view.php does not properly check a role, which
        allows remote authenticated users to obtain the full
        names of other users via the course profile page.
    
      - CVE-2010-1618
        A Cross-site scripting (XSS) vulnerability in the phpCAS
        client library allows remote attackers to inject
        arbitrary web script or HTML via a crafted URL, which is
        not properly handled in an error message.
    
      - CVE-2010-1619
        A Cross-site scripting (XSS) vulnerability in the
        fix_non_standard_entities function in the KSES HTML text
        cleaning library (weblib.php) allows remote attackers to
        inject arbitrary web script or HTML via crafted HTML
        entities.
    
      - CVE-2010-2228
        A Cross-site scripting (XSS) vulnerability in the MNET
        access-control interface allows remote attackers to
        inject arbitrary web script or HTML via vectors
        involving extended characters in a username.
    
      - CVE-2010-2229
        Multiple cross-site scripting (XSS) vulnerabilities in
        blog/index.php allow remote attackers to inject
        arbitrary web script or HTML via unspecified parameters.
    
      - CVE-2010-2230
        The KSES text cleaning filter in lib/weblib.php does not
        properly handle vbscript URIs, which allows remote
        authenticated users to conduct cross-site scripting
        (XSS) attacks via HTML input.
    
      - CVE-2010-2231
        A Cross-site request forgery (CSRF) vulnerability in
        report/overview/report.php in the quiz module allows
        remote attackers to hijack the authentication of
        arbitrary users for requests that delete quiz attempts
        via the attemptid parameter."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-1613"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-1614"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-1615"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-1616"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-1617"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-1618"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-1619"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-2228"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-2229"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-2230"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2010-2231"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.debian.org/security/2010/dsa-2115"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "Upgrade the moodle package.
    
    This security update switches to a new upstream version and requires
    database updates. After installing the fixed package, you must visit
    <http://localhost/moodle/admin/> and follow the update instructions.
    
    For the stable distribution (lenny), these problems have been fixed in
    version 1.8.13-1."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:moodle");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2010/04/29");
      script_set_attribute(attribute:"patch_publication_date", value:"2010/09/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2010/10/06");
      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:"5.0", prefix:"moodle", reference:"1.8.13-1")) 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");
    
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_0_MOODLE-100503.NASL
    descriptionMoodle version 1.9.8 fixes several security issues including cross-site-scripting (XSS) and SQL injection bugs (CVE-2010-1613, CVE-2010-1614, CVE-2010-1615, CVE-2010-1616, CVE-2010-1617 CVE-2010-1618, CVE-2010-1619).
    last seen2020-06-01
    modified2020-06-02
    plugin id46230
    published2010-05-05
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/46230
    titleopenSUSE Security Update : moodle (openSUSE-SU-2010:0212-1)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_1_MOODLE-100503.NASL
    descriptionMoodle version 1.9.8 fixes several security issues including cross-site-scripting (XSS) and SQL injection bugs (CVE-2010-1613, CVE-2010-1614, CVE-2010-1615, CVE-2010-1616, CVE-2010-1617 CVE-2010-1618, CVE-2010-1619).
    last seen2020-06-01
    modified2020-06-02
    plugin id46233
    published2010-05-05
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/46233
    titleopenSUSE Security Update : moodle (openSUSE-SU-2010:0212-1)