Vulnerabilities > CVE-2019-10431 - Code Injection vulnerability in Jenkins Script Security

047910
CVSS 9.9 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
jenkins
CWE-94
critical
nessus

Summary

A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.64 and earlier related to the handling of default parameter expressions in constructors allowed attackers to execute arbitrary code in sandboxed scripts.

Vulnerable Configurations

Part Description Count
Application
Jenkins
88

Common Attack Pattern Enumeration and Classification (CAPEC)

  • 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.
  • Manipulating User-Controlled Variables
    This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.

Nessus

  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-4097.NASL
    descriptionAn update for jenkins-2-plugins is now available for Red Hat OpenShift Container Platform 4.2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat OpenShift Container Platform is Red Hat
    last seen2020-04-16
    modified2019-12-12
    plugin id131976
    published2019-12-12
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131976
    titleRHEL 7 : OpenShift Container Platform 4.2 jenkins-2-plugins (RHSA-2019:4097)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Red Hat Security Advisory RHSA-2019:4097. The text 
    # itself is copyright (C) Red Hat, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(131976);
      script_version("1.5");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/15");
    
      script_cve_id("CVE-2019-10393", "CVE-2019-10394", "CVE-2019-10399", "CVE-2019-10400", "CVE-2019-10431", "CVE-2019-10432");
      script_xref(name:"RHSA", value:"2019:4097");
    
      script_name(english:"RHEL 7 : OpenShift Container Platform 4.2 jenkins-2-plugins (RHSA-2019:4097)");
      script_summary(english:"Checks the rpm output for the updated package");
    
      script_set_attribute(
        attribute:"synopsis",
        value:"The remote Red Hat host is missing a security update."
      );
      script_set_attribute(
        attribute:"description",
        value:
    "An update for jenkins-2-plugins is now available for Red Hat OpenShift
    Container Platform 4.2.
    
    Red Hat Product Security has rated this update as having a security
    impact of Important. A Common Vulnerability Scoring System (CVSS) base
    score, which gives a detailed severity rating, is available for each
    vulnerability from the CVE link(s) in the References section.
    
    Red Hat OpenShift Container Platform is Red Hat's cloud computing
    Kubernetes application platform solution designed for on-premise or
    private cloud deployments.
    
    Security Fix(es) :
    
    * jenkins-script-security: Sandbox bypass vulnerability in Script
    Security Plugin (CVE-2019-10431)
    
    * jenkins-2-plugins: Stored XSS vulnerability in HTML Publisher Plugin
    (CVE-2019-10432)
    
    For more details about the security issue(s), including the impact, a
    CVSS score, acknowledgments, and other related information, refer to
    the CVE page(s) listed in the References section."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/errata/RHSA-2019:4097"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2019-10393"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2019-10394"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2019-10399"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2019-10400"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2019-10431"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2019-10432"
      );
      script_set_attribute(
        attribute:"solution",
        value:"Update the affected jenkins-2-plugins 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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-10431");
      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:redhat:enterprise_linux:jenkins-2-plugins");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/12");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/12/11");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/12");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Red Hat Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
    os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
    os_ver = os_ver[1];
    if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
    
    yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
    if (!empty_or_null(yum_updateinfo)) 
    {
      rhsa = "RHSA-2019:4097";
      yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
      if (!empty_or_null(yum_report))
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_WARNING,
          extra      : yum_report 
        );
        exit(0);
      }
      else
      {
        audit_message = "affected by Red Hat security advisory " + rhsa;
        audit(AUDIT_OS_NOT, audit_message);
      }
    }
    else
    {
      flag = 0;
      if (rpm_check(release:"RHEL7", reference:"jenkins-2-plugins-4.2.1574873592-1.el7")) flag++;
    
      if (flag)
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_WARNING,
          extra      : rpm_report_get() + redhat_report_package_caveat()
        );
        exit(0);
      }
      else
      {
        tested = pkg_tests_get();
        if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
        else audit(AUDIT_PACKAGE_NOT_INSTALLED, "jenkins-2-plugins");
      }
    }
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-4055.NASL
    descriptionAn update for jenkins-2-plugins is now available for Red Hat OpenShift Container Platform 3.11. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat OpenShift Container Platform is Red Hat
    last seen2020-04-16
    modified2019-12-18
    plugin id132224
    published2019-12-18
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132224
    titleRHEL 7 : OpenShift Container Platform 3.11 jenkins-2-plugins (RHSA-2019:4055)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-4089.NASL
    descriptionAn update for jenkins-2-plugins is now available for Red Hat OpenShift Container Platform 4.1. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat OpenShift Container Platform is Red Hat
    last seen2020-04-16
    modified2019-12-18
    plugin id132226
    published2019-12-18
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132226
    titleRHEL 7 : OpenShift Container Platform 4.1 jenkins-2-plugins (RHSA-2019:4089)

Redhat

advisories
  • rhsa
    idRHSA-2019:4055
  • rhsa
    idRHSA-2019:4089
  • rhsa
    idRHSA-2019:4097
rpms
  • jenkins-2-plugins-0:3.11.1575261255-1.el7
  • jenkins-2-plugins-0:4.1.1574872364-1.el7
  • jenkins-2-plugins-0:4.2.1574873592-1.el7