Vulnerabilities > CVE-2018-1000068 - Information Exposure vulnerability in multiple products

047910
CVSS 5.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
LOW
Integrity impact
NONE
Availability impact
NONE
network
low complexity
jenkins
oracle
CWE-200
nessus
NVD
Published: 2018-02-16
Updated: 2024-11-21

Summary

An improper input validation vulnerability exists in Jenkins versions 2.106 and earlier, and LTS 2.89.3 and earlier, that allows an attacker to access plugin resource files in the META-INF and WEB-INF directories that should not be accessible, if the Jenkins home directory is on a case-insensitive file system.

Vulnerable Configurations

Part Description Count
Application
Jenkins
1730
Application
Oracle
1

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 familyCGI abuses
NASL idJENKINS_2_107.NASL
descriptionThe version of Jenkins running on the remote web server is prior to 2.107 or is a version of Jenkins LTS prior to 2.89.4. It is, therefore, affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application
last seen2020-06-01
modified2020-06-02
plugin id106951
published2018-02-22
reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/106951
titleJenkins < 2.89.4 / 2.107 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(106951);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id(
    "CVE-2018-6356",
    "CVE-2018-1000068",
    "CVE-2018-1000102",
    "CVE-2018-1000103"
  );
  script_bugtraq_id(103037, 103101, 103209);

  script_name(english:"Jenkins < 2.89.4 / 2.107 Multiple Vulnerabilities");
  script_summary(english:"Checks the Jenkins version.");

  script_set_attribute(attribute:"synopsis", value:
"A job scheduling and management system hosted on the remote web server
is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Jenkins running on the remote web server is prior to
2.107 or is a version of Jenkins LTS prior to 2.89.4. It is, therefore,
affected by multiple vulnerabilities.

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://jenkins.io/security/advisory/2018-02-14/");
  script_set_attribute(attribute:"solution", value:
"Upgrade Jenkins to version 2.107 or later, Jenkins LTS to version
2.89.4 or later.");
  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:F/RL:OF/RC:ND");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:X");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-1000068");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/02/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/02/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/22");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cloudbees:jenkins");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("jenkins_detect.nasl");
  script_require_keys("www/Jenkins");
  script_require_ports("Services/www", 8080);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");

port = get_http_port(default:8080);
get_kb_item_or_exit("www/Jenkins/"+port+"/Installed");
url = build_url(qs:'/', port:port);

version = '';
fix = '';
if (get_kb_item("www/Jenkins/"+port+"/is_LTS") )
{
  appname = "Jenkins Open Source LTS";
  fix = '2.89.4';
}
else
{
  appname = "Jenkins Open Source";
  fix = '2.107';
}

version = get_kb_item("www/Jenkins/" + port + "/JenkinsVersion");
if (version == 'unknown')
{
  audit(AUDIT_UNKNOWN_WEB_APP_VER, appname, url);
}

if (ver_compare(ver:version, fix:fix, strict:FALSE) < 0)
{
  report =
    '\n  URL           : ' + url +
    '\n  Product       : ' + appname +
    '\n  Version       : ' + version +
    '\n  Fixed version : ' + fix +
    '\n';

  security_report_v4(port:port, severity:SECURITY_WARNING, extra:report, xsrf:TRUE);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, appname, url, version);

References