Vulnerabilities > CVE-2018-14657 - Improper Restriction of Excessive Authentication Attempts vulnerability in Redhat Keycloak and Single Sign-On

047910
CVSS 8.1 - HIGH
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
high complexity
redhat
CWE-307
nessus

Summary

A flaw was found in Keycloak 4.2.1.Final, 4.3.0.Final. When TOPT enabled, an improper implementation of the Brute Force detection algorithm will not enforce its protection measures.

Nessus

  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2018-3592.NASL
    descriptionNew Red Hat Single Sign-On 7.2.5 packages are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 Single Sign-On 7.2 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This release of Red Hat Single Sign-On 7.2.5 serves as a replacement for Red Hat Single Sign-On 7.2.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Security Fix(es) : * keycloak: auth permitted with expired certs in SAML client (CVE-2018-10894) * keycloak: XSS-Vulnerability with response_mode=form_post (CVE-2018-14655) * keycloak: Open Redirect in Login and Logout (CVE-2018-14658) * keycloak: brute force protection not working for the entire login workflow (CVE-2018-14657) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. The CVE-2018-10894 issue was discovered by Benjamin Berg (Red Hat).
    last seen2020-06-01
    modified2020-06-02
    plugin id118949
    published2018-11-14
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118949
    titleRHEL 6 : Red Hat Single Sign-On 7.2.5 on RHEL 6 (RHSA-2018:3592)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Red Hat Security Advisory RHSA-2018:3592. The text 
    # itself is copyright (C) Red Hat, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(118949);
      script_version("1.8");
      script_cvs_date("Date: 2019/10/24 15:35:46");
    
      script_cve_id("CVE-2018-10894", "CVE-2018-14637", "CVE-2018-14655", "CVE-2018-14657", "CVE-2018-14658");
      script_xref(name:"RHSA", value:"2018:3592");
    
      script_name(english:"RHEL 6 : Red Hat Single Sign-On 7.2.5 on RHEL 6 (RHSA-2018:3592)");
      script_summary(english:"Checks the rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Red Hat host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "New Red Hat Single Sign-On 7.2.5 packages are now available for Red
    Hat Enterprise Linux 6.
    
    Red Hat Product Security has rated this update as having a security
    impact of Moderate. 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 Single Sign-On 7.2 is a standalone server, based on the
    Keycloak project, that provides authentication and standards-based
    single sign-on capabilities for web and mobile applications.
    
    This release of Red Hat Single Sign-On 7.2.5 serves as a replacement
    for Red Hat Single Sign-On 7.2.4, and includes bug fixes and
    enhancements, which are documented in the Release Notes document
    linked to in the References.
    
    Security Fix(es) :
    
    * keycloak: auth permitted with expired certs in SAML client
    (CVE-2018-10894)
    
    * keycloak: XSS-Vulnerability with response_mode=form_post
    (CVE-2018-14655)
    
    * keycloak: Open Redirect in Login and Logout (CVE-2018-14658)
    
    * keycloak: brute force protection not working for the entire login
    workflow (CVE-2018-14657)
    
    For more details about the security issue(s), including the impact, a
    CVSS score, and other related information, refer to the CVE page(s)
    listed in the References section.
    
    The CVE-2018-10894 issue was discovered by Benjamin Berg (Red Hat)."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/documentation/en-us/red_hat_single_sign_on/?"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/errata/RHSA-2018:3592"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2018-10894"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2018-14637"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2018-14655"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2018-14657"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2018-14658"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "Update the affected rh-sso7-keycloak and / or rh-sso7-keycloak-server
    packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-keycloak");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-keycloak-server");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/01");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/11/13");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/14");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2018-2019 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:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.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-2018:3592";
      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:"RHEL6", reference:"rh-sso7-keycloak-3.4.14-1.Final_redhat_00001.1.jbcs.el6")) flag++;
      if (rpm_check(release:"RHEL6", reference:"rh-sso7-keycloak-server-3.4.14-1.Final_redhat_00001.1.jbcs.el6")) 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, "rh-sso7-keycloak / rh-sso7-keycloak-server");
      }
    }
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2018-3593.NASL
    descriptionNew Red Hat Single Sign-On 7.2.5 packages are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 Single Sign-On 7.2 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This release of Red Hat Single Sign-On 7.2.5 serves as a replacement for Red Hat Single Sign-On 7.2.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Security Fix(es) : * keycloak: auth permitted with expired certs in SAML client (CVE-2018-10894) * keycloak: XSS-Vulnerability with response_mode=form_post (CVE-2018-14655) * keycloak: Open Redirect in Login and Logout (CVE-2018-14658) * keycloak: brute force protection not working for the entire login workflow (CVE-2018-14657) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. The CVE-2018-10894 issue was discovered by Benjamin Berg (Red Hat).
    last seen2020-06-01
    modified2020-06-02
    plugin id118950
    published2018-11-14
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118950
    titleRHEL 7 : Red Hat Single Sign-On 7.2.5 on RHEL 7 (RHSA-2018:3593)

Redhat

advisories
  • rhsa
    idRHSA-2018:3592
  • rhsa
    idRHSA-2018:3593
  • rhsa
    idRHSA-2018:3595
rpms
  • rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el6
  • rh-sso7-keycloak-server-0:3.4.14-1.Final_redhat_00001.1.jbcs.el6
  • rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el7
  • rh-sso7-keycloak-server-0:3.4.14-1.Final_redhat_00001.1.jbcs.el7