Vulnerabilities > CVE-2020-2107 - Insufficiently Protected Credentials vulnerability in Jenkins Fortify 19.1.28/19.1.29

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
jenkins
CWE-522
nessus

Summary

Jenkins Fortify Plugin 19.1.29 and earlier stores proxy server passwords unencrypted in job config.xml files on the Jenkins master where they can be viewed by users with Extended Read permission, or access to the master file system.

Vulnerable Configurations

Part Description Count
Application
Jenkins
2

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Session Sidejacking
    Session sidejacking takes advantage of an unencrypted communication channel between a victim and target system. The attacker sniffs traffic on a network looking for session tokens in unencrypted traffic. Once a session token is captured, the attacker performs malicious actions by using the stolen token with the targeted application to impersonate the victim. This attack is a specific method of session hijacking, which is exploiting a valid session token to gain unauthorized access to a target system or information. Other methods to perform a session hijacking are session fixation, cross-site scripting, or compromising a user or server machine and stealing the session token.
  • Lifting credential(s)/key material embedded in client distributions (thick or thin)
    An attacker examines a target application's code or configuration files to find credential or key material that has been embedded within the application or its files. Many services require authentication with their users for the various purposes including billing, access control or attribution. Some client applications store the user's authentication credentials or keys to accelerate the login process. Some clients may have built-in keys or credentials (in which case the server is authenticating with the client, rather than the user). If the attacker is able to locate where this information is stored, they may be able to retrieve these credentials. The attacker could then use these stolen credentials to impersonate the user or client, respectively, in interactions with the service or use stolen keys to eavesdrop on nominally secure communications between the client and server.
  • Password Recovery Exploitation
    An attacker may take advantage of the application feature to help users recover their forgotten passwords in order to gain access into the system with the same privileges as the original user. Generally password recovery schemes tend to be weak and insecure. Most of them use only one security question . For instance, mother's maiden name tends to be a fairly popular one. Unfortunately in many cases this information is not very hard to find, especially if the attacker knows the legitimate user. These generic security questions are also re-used across many applications, thus making them even more insecure. An attacker could for instance overhear a coworker talking to a bank representative at the work place and supplying their mother's maiden name for verification purposes. An attacker can then try to log in into one of the victim's accounts, click on "forgot password" and there is a good chance that the security question there will be to provide mother's maiden name. A weak password recovery scheme totally undermines the effectiveness of a strong password scheme.

Nessus

NASL familyFreeBSD Local Security Checks
NASL idFREEBSD_PKG_A250539DD1D44591AFD3C8BDFAC335D8.NASL
descriptionJenkins Security Advisory : Description(High) SECURITY-1682 / CVE-2020-2099 Inbound TCP Agent Protocol/3 authentication bypass (Medium) SECURITY-1641 / CVE-2020-2100 Jenkins vulnerable to UDP amplification reflection attack (Medium) SECURITY-1659 / CVE-2020-2101 Non-constant time comparison of inbound TCP agent connection secret (Medium) SECURITY-1660 / CVE-2020-2102 Non-constant time HMAC comparison (Medium) SECURITY-1695 / CVE-2020-2103 Diagnostic page exposed session cookies (Medium) SECURITY-1650 / CVE-2020-2104 Memory usage graphs accessible to anyone with Overall/Read (Low) SECURITY-1704 / CVE-2020-2105 Jenkins REST APIs vulnerable to clickjacking (Medium) SECURITY-1680 / CVE-2020-2106 Stored XSS vulnerability in Code Coverage API Plugin (Medium) SECURITY-1565 / CVE-2020-2107 Fortify Plugin stored credentials in plain text (High) SECURITY-1719 / CVE-2020-2108 XXE vulnerability in WebSphere Deployer Plugin
last seen2020-06-01
modified2020-06-02
plugin id133329
published2020-01-30
reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/133329
titleFreeBSD : jenkins -- multiple vulnerabilities (a250539d-d1d4-4591-afd3-c8bdfac335d8)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2020 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(133329);
  script_version("1.3");
  script_cvs_date("Date: 2020/02/03");

  script_cve_id("CVE-2020-2099", "CVE-2020-2100", "CVE-2020-2101", "CVE-2020-2102", "CVE-2020-2103", "CVE-2020-2104", "CVE-2020-2105", "CVE-2020-2106", "CVE-2020-2107", "CVE-2020-2108");

  script_name(english:"FreeBSD : jenkins -- multiple vulnerabilities (a250539d-d1d4-4591-afd3-c8bdfac335d8)");
  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:
"Jenkins Security Advisory : Description(High) SECURITY-1682 /
CVE-2020-2099 Inbound TCP Agent Protocol/3 authentication bypass
(Medium) SECURITY-1641 / CVE-2020-2100 Jenkins vulnerable to UDP
amplification reflection attack (Medium) SECURITY-1659 / CVE-2020-2101
Non-constant time comparison of inbound TCP agent connection secret
(Medium) SECURITY-1660 / CVE-2020-2102 Non-constant time HMAC
comparison (Medium) SECURITY-1695 / CVE-2020-2103 Diagnostic page
exposed session cookies (Medium) SECURITY-1650 / CVE-2020-2104 Memory
usage graphs accessible to anyone with Overall/Read (Low)
SECURITY-1704 / CVE-2020-2105 Jenkins REST APIs vulnerable to
clickjacking (Medium) SECURITY-1680 / CVE-2020-2106 Stored XSS
vulnerability in Code Coverage API Plugin (Medium) SECURITY-1565 /
CVE-2020-2107 Fortify Plugin stored credentials in plain text (High)
SECURITY-1719 / CVE-2020-2108 XXE vulnerability in WebSphere Deployer
Plugin"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://jenkins.io/security/advisory/2020-01-29/"
  );
  # https://vuxml.freebsd.org/freebsd/a250539d-d1d4-4591-afd3-c8bdfac335d8.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?46cd87fc"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-2099");
  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:freebsd:freebsd:jenkins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:jenkins-lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/30");
  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:"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:"jenkins<=2.219")) flag++;
if (pkg_test(save_report:TRUE, pkg:"jenkins-lts<=2.204.2")) flag++;

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