Vulnerabilities > CVE-2019-13457 - Information Exposure vulnerability in Otrs

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
LOW
Integrity impact
NONE
Availability impact
NONE
network
low complexity
otrs
CWE-200
nessus
NVD
Published: 2020-03-10
Updated: 2024-11-21

Summary

An issue was discovered in Open Ticket Request System (OTRS) 7.0.x through 7.0.8. A customer user can use the search results to disclose information from their "company" tickets (with the same CustomerID), even when the CustomerDisableCompanyTicketAccess setting is turned on.

Vulnerable Configurations

Part Description Count
Application
Otrs
8

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familySuSE Local Security Checks
NASL idOPENSUSE-2020-551.NASL
descriptionOtrs was updated to 5.0.42, fixing lots of bugs and security issues : https://community.otrs.com/otrs-community-edition-5s-patch-level-42/ - CVE-2020-1773 boo#1168029 OSA-2020-10 : - Session / Password / Password token leak An attacker with the ability to generate session IDs or password reset tokens, either by being able to authenticate or by exploiting OSA-2020-09, may be able to predict other users session IDs, password reset tokens and automatically generated passwords. - CVE-2020-1772 boo#1168029 OSA-2020-09 : - Information Disclosure It’s possible to craft Lost Password requests with wildcards in the Token value, which allows attacker to retrieve valid Token(s), generated by users which already requested new passwords. - CVE-2020-1771 boo#1168030 OSA-2020-08 : - Possible XSS in Customer user address book Attacker is able craft an article with a link to the customer address book with malicious content (JavaScript). When agent opens the link, JavaScript code is executed due to the missing parameter encoding. - CVE-2020-1770 boo#1168031 OSA-2020-07 : - Information disclosure in support bundle files Support bundle generated files could contain sensitive information that might be unwanted to be disclosed. - CVE-2020-1769 boo#1168032 OSA-2020-06 : - Autocomplete in the form login screens In the login screens (in agent and customer interface), Username and Password fields use autocomplete, which might be considered as security issue. Update to 5.0.41 https://community.otrs.com/otrs-community-edition-5s-patch-level-41/ - bug#14912 - Installer refers to non-existing documentation - added code to upgrade OTRS from 4 to 5 READ UPGRADING.SUSE - steps 1 to 4 are done by rpm pkg - steps 5 to *END* need to be done manually cause of DB backup Update to 5.0.40 https://community.otrs.com/otrs-community-edition-5s-patch-level-40/ - CVE-2020-1766 boo#1160663 OSA-2020-02: Improper handling of uploaded inline images Due to improper handling of uploaded images it is possible in very unlikely and rare conditions to force the agents browser to execute malicious JavaScript from a special crafted SVG file rendered as inline jpg file. - CVE-2020-1765, OSA-2020-01: Spoofing of From field in several screens An improper control of parameters allows the spoofing of the from fields of the following screens: AgentTicketCompose, AgentTicketForward, AgentTicketBounce and AgentTicketEmailOutbound - run bin/otrs.Console.pl Maint::Config::Rebuild after the upgrade - Update 5.0.39 https://community.otrs.com/otrs-community-edition-5s-pat ch-level-39/ - CVE-2019-18180 boo#1157001 OSA-2019-15: Denial of service OTRS can be put into an endless loop by providing filenames with overly long extensions. This applies to the PostMaster (sending in email) and also upload (attaching files to mails, for example). - CVE-2019-18179 OSA-2019-14: Information Disclosure An attacker who is logged into OTRS as an agent is able to list tickets assigned to other agents, which are in the queue where attacker doesn’t have permissions. Update to 5.0.38 https://community.otrs.com/release-notes-otrs-5s-patch-level-38/ - CVE-2019-16375, boo#1156431 OSA-2019-13: Stored XXS An attacker who is logged into OTRS as an agent or customer user with appropriate permissions can create a carefully crafted string containing malicious JavaScript code as an article body. This malicious code is executed when an agent compose an answer to the original article. Update to 5.0.37 https://community.otrs.com/release-notes-otrs-5s-patch-level-37/ - CVE-2019-13458, boo#1141432, OSA-2019-12 : Information Disclosure An attacker who is logged into OTRS as an agent user with appropriate permissions can leverage OTRS tags in templates in order to disclose hashed user passwords. - CVE-2019-13457, boo#1141431, OSA-2019-11 : Information Disclosure A customer user can use the search results to disclose information from their “company” tickets (with the same CustomerID), even when CustomerDisableCompanyTicketAccess setting is turned on. - CVE-2019-12746, boo#1141430, OSA-2019-10 : Session ID Disclosure A user logged into OTRS as an agent might unknowingly disclose their session ID by sharing the link of an embedded ticket article with third parties. This identifier can be then potentially abused in order to impersonate the agent user. Update to 5.0.36 https://community.otrs.com/release-notes-otrs-5s-patch-level-36/ - CVE-2019-12497, boo#1137614, OSA-2019-09: Information Disclosure In the customer or external frontend, personal information of agents can be disclosed like Name and mail address in external notes. - CVE-2019-12248, boo#1137615, OSA-2019-08: Loading External Image Resources An attacker could send a malicious email to an OTRS system. If a logged in agent user quotes it, the email could cause the browser to load external image resources. Update to 5.0.35 https://community.otrs.com/release-notes-otrs-5s-patch-level-35/ - CVE-2019-10067, boo#1139406, OSA-2019-05 : Reflected and Stored XSS An attacker who is logged into OTRS as an agent user with appropriate permissions may manipulate the URL to cause execution of JavaScript in the context of OTRS. - CVE-2019-9892, boo#1139406, OSA-2019-04 : XXE Processing An attacker who is logged into OTRS as an agent user with appropriate permissions may try to import carefully crafted Report Statistics XML that will result in reading of arbitrary files of OTRS filesystem. - update missing CVE for OSA-2018-10, OSA-2019-01 Update to 5.0.34 - https://community.otrs.com/release-notes-otrs-5s-patch-level-34/ - CVE-2019-9752, boo#1122560, OSA-2019-01: Stored XSS An attacker who is logged into OTRS as an agent or a customer user may upload a carefully crafted resource in order to cause execution of JavaScript in the context of OTRS. Update to 5.0.33 - https://community.otrs.com/release-notes-otrs-5s-patch-level-33/ Update to 5.0.26 - https://www.otrs.com/release-notes-otrs-5s-patch-level-26 - https://www.otrs.com/release-notes-otrsitsm-module-5s-patch-level-26/ - remove obsolete - otrs-scheduler.service - otrs-scheduler.init
last seen2020-05-03
modified2020-04-28
plugin id136023
published2020-04-28
reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/136023
titleopenSUSE Security Update : otrs (openSUSE-2020-551)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2020-551.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(136023);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/04/30");

  script_cve_id("CVE-2019-10067", "CVE-2019-12248", "CVE-2019-12497", "CVE-2019-12746", "CVE-2019-13457", "CVE-2019-13458", "CVE-2019-16375", "CVE-2019-18179", "CVE-2019-18180", "CVE-2019-9752", "CVE-2019-9892", "CVE-2020-1765", "CVE-2020-1766", "CVE-2020-1769", "CVE-2020-1770", "CVE-2020-1771", "CVE-2020-1772", "CVE-2020-1773");

  script_name(english:"openSUSE Security Update : otrs (openSUSE-2020-551)");
  script_summary(english:"Check for the openSUSE-2020-551 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Otrs was updated to 5.0.42, fixing lots of bugs and security issues :

https://community.otrs.com/otrs-community-edition-5s-patch-level-42/

  - CVE-2020-1773 boo#1168029 OSA-2020-10 :

  - Session / Password / Password token leak An attacker
    with the ability to generate session IDs or password
    reset tokens, either by being able to authenticate or by
    exploiting OSA-2020-09, may be able to predict other
    users session IDs, password reset tokens and
    automatically generated passwords.

  - CVE-2020-1772 boo#1168029 OSA-2020-09 :

  - Information Disclosure It’s possible to craft Lost
    Password requests with wildcards in the Token value,
    which allows attacker to retrieve valid Token(s),
    generated by users which already requested new
    passwords.

  - CVE-2020-1771 boo#1168030 OSA-2020-08 :

  - Possible XSS in Customer user address book Attacker is
    able craft an article with a link to the customer
    address book with malicious content (JavaScript). When
    agent opens the link, JavaScript code is executed due to
    the missing parameter encoding.

  - CVE-2020-1770 boo#1168031 OSA-2020-07 :

  - Information disclosure in support bundle files Support
    bundle generated files could contain sensitive
    information that might be unwanted to be disclosed.

  - CVE-2020-1769 boo#1168032 OSA-2020-06 :

  - Autocomplete in the form login screens In the login
    screens (in agent and customer interface), Username and
    Password fields use autocomplete, which might be
    considered as security issue.

Update to 5.0.41
https://community.otrs.com/otrs-community-edition-5s-patch-level-41/

  - bug#14912 - Installer refers to non-existing
    documentation

  - added code to upgrade OTRS from 4 to 5

    READ UPGRADING.SUSE

  - steps 1 to 4 are done by rpm pkg

  - steps 5 to *END* need to be done manually cause of DB
    backup

Update to 5.0.40

https://community.otrs.com/otrs-community-edition-5s-patch-level-40/

  - CVE-2020-1766 boo#1160663 OSA-2020-02: Improper handling
    of uploaded inline images Due to improper handling of
    uploaded images it is possible in very unlikely and rare
    conditions to force the agents browser to execute
    malicious JavaScript from a special crafted SVG file
    rendered as inline jpg file.

  - CVE-2020-1765, OSA-2020-01: Spoofing of From field in
    several screens An improper control of parameters allows
    the spoofing of the from fields of the following
    screens: AgentTicketCompose, AgentTicketForward,
    AgentTicketBounce and AgentTicketEmailOutbound

  - run bin/otrs.Console.pl Maint::Config::Rebuild after the
    upgrade

  - Update 5.0.39
    https://community.otrs.com/otrs-community-edition-5s-pat
    ch-level-39/

  - CVE-2019-18180 boo#1157001 OSA-2019-15: Denial of
    service OTRS can be put into an endless loop by
    providing filenames with overly long extensions. This
    applies to the PostMaster (sending in email) and also
    upload (attaching files to mails, for example).

  - CVE-2019-18179 OSA-2019-14: Information Disclosure An
    attacker who is logged into OTRS as an agent is able to
    list tickets assigned to other agents, which are in the
    queue where attacker doesn’t have permissions.

Update to 5.0.38
https://community.otrs.com/release-notes-otrs-5s-patch-level-38/

  - CVE-2019-16375, boo#1156431 OSA-2019-13: Stored XXS An
    attacker who is logged into OTRS as an agent or customer
    user with appropriate permissions can create a carefully
    crafted string containing malicious JavaScript code as
    an article body. This malicious code is executed when an
    agent compose an answer to the original article.

Update to 5.0.37
https://community.otrs.com/release-notes-otrs-5s-patch-level-37/

  - CVE-2019-13458, boo#1141432, OSA-2019-12 :

    Information Disclosure An attacker who is logged into
    OTRS as an agent user with appropriate permissions can
    leverage OTRS tags in templates in order to disclose
    hashed user passwords.

  - CVE-2019-13457, boo#1141431, OSA-2019-11 :

    Information Disclosure A customer user can use the
    search results to disclose information from their
    “company” tickets (with the same
    CustomerID), even when
    CustomerDisableCompanyTicketAccess setting is turned on.

  - CVE-2019-12746, boo#1141430, OSA-2019-10 :

    Session ID Disclosure A user logged into OTRS as an
    agent might unknowingly disclose their session ID by
    sharing the link of an embedded ticket article with
    third parties. This identifier can be then potentially
    abused in order to impersonate the agent user.

Update to 5.0.36

https://community.otrs.com/release-notes-otrs-5s-patch-level-36/

  - CVE-2019-12497, boo#1137614, OSA-2019-09: Information
    Disclosure In the customer or external frontend,
    personal information of agents can be disclosed like
    Name and mail address in external notes.

  - CVE-2019-12248, boo#1137615, OSA-2019-08: Loading
    External Image Resources An attacker could send a
    malicious email to an OTRS system. If a logged in agent
    user quotes it, the email could cause the browser to
    load external image resources.

Update to 5.0.35

https://community.otrs.com/release-notes-otrs-5s-patch-level-35/

  - CVE-2019-10067, boo#1139406, OSA-2019-05 :

    Reflected and Stored XSS An attacker who is logged into
    OTRS as an agent user with appropriate permissions may
    manipulate the URL to cause execution of JavaScript in
    the context of OTRS.

  - CVE-2019-9892, boo#1139406, OSA-2019-04 :

    XXE Processing An attacker who is logged into OTRS as an
    agent user with appropriate permissions may try to
    import carefully crafted Report Statistics XML that will
    result in reading of arbitrary files of OTRS filesystem.

  - update missing CVE for OSA-2018-10, OSA-2019-01

Update to 5.0.34

- https://community.otrs.com/release-notes-otrs-5s-patch-level-34/

  - CVE-2019-9752, boo#1122560, OSA-2019-01: Stored XSS An
    attacker who is logged into OTRS as an agent or a
    customer user may upload a carefully crafted resource in
    order to cause execution of JavaScript in the context of
    OTRS.

Update to 5.0.33

- https://community.otrs.com/release-notes-otrs-5s-patch-level-33/

Update to 5.0.26

- https://www.otrs.com/release-notes-otrs-5s-patch-level-26

- https://www.otrs.com/release-notes-otrsitsm-module-5s-patch-level-26/

  - remove obsolete

  - otrs-scheduler.service

  - otrs-scheduler.init"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1122560"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1137614"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1137615"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1139406"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1141430"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1141431"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1141432"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1156431"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1157001"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1160663"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1168029"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1168030"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1168031"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1168032"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/otrs-community-edition-5s-patch-level-39/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/otrs-community-edition-5s-patch-level-40/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/otrs-community-edition-5s-patch-level-41/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/otrs-community-edition-5s-patch-level-42/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/release-notes-otrs-5s-patch-level-33/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/release-notes-otrs-5s-patch-level-34/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/release-notes-otrs-5s-patch-level-35/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/release-notes-otrs-5s-patch-level-36/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/release-notes-otrs-5s-patch-level-37/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://community.otrs.com/release-notes-otrs-5s-patch-level-38/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.otrs.com/release-notes-otrs-5s-patch-level-26"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.otrs.com/release-notes-otrsitsm-module-5s-patch-level-26/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected otrs packages.");
  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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:otrs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:otrs-itsm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/28");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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");

  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 !~ "^(SUSE15\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);



flag = 0;

if ( rpm_check(release:"SUSE15.1", reference:"otrs-5.0.42-lp151.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"otrs-itsm-5.0.42-lp151.2.3.1") ) 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, "otrs / otrs-itsm");
}

References