CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
84.2%
Red Hat Single Sign-On 7.1 is 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 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 7.1 serves as a replacement for Red Hat Single Sign-On 7.0, and includes several bug fixes and enhancements. For further information regarding those, refer to the Release Notes linked to in the References section.
Security Fix(es) :
It was found that keycloak did not correctly check permissions when handling service account user deletion requests sent to the REST server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm. (CVE-2016-8629)
It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a denial of service attack.
(CVE-2016-9589)
It was found that keycloak’s implementation of HMAC verification for JWS tokens uses a method that runs in non-constant time, potentially leaving the application vulnerable to timing attacks. (CVE-2017-2585)
Red Hat would like to thank Gabriel Lavoie (Halogen Software) for reporting CVE-2016-9589 and Richard Kettelerij (Mindloops) for reporting CVE-2017-2585.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2017:0873. The text
# itself is copyright (C) Red Hat, Inc.
#
include('compat.inc');
if (description)
{
script_id(117314);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/12");
script_cve_id("CVE-2016-8629", "CVE-2016-9589", "CVE-2017-2585");
script_xref(name:"RHSA", value:"2017:0873");
script_name(english:"RHEL 7 : Single Sign-On (RHSA-2017:0873)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"Red Hat Single Sign-On 7.1 is 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 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 7.1 serves as a replacement for
Red Hat Single Sign-On 7.0, and includes several bug fixes and
enhancements. For further information regarding those, refer to the
Release Notes linked to in the References section.
Security Fix(es) :
* It was found that keycloak did not correctly check permissions when
handling service account user deletion requests sent to the REST
server. An attacker with service account authentication could use this
flaw to bypass normal permissions and delete users in a separate
realm. (CVE-2016-8629)
* It was found that JBoss EAP 7 Header Cache was inefficient. An
attacker could use this flaw to cause a denial of service attack.
(CVE-2016-9589)
* It was found that keycloak's implementation of HMAC verification for
JWS tokens uses a method that runs in non-constant time, potentially
leaving the application vulnerable to timing attacks. (CVE-2017-2585)
Red Hat would like to thank Gabriel Lavoie (Halogen Software) for
reporting CVE-2016-9589 and Richard Kettelerij (Mindloops) for
reporting CVE-2017-2585.");
# https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.1/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1825fcce");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2017:0873");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2016-8629");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2016-9589");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2017-2585");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/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:N/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-8629");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/12");
script_set_attribute(attribute:"patch_publication_date", value:"2017/04/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/06");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-freemarker");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-javapackages-tools");
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:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-libunix-dbus-java");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-libunix-dbus-java-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-libunix-dbus-java-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-liquibase");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-liquibase-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-python-javapackages");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-runtime");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-twitter4j");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-twitter4j-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-zxing");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-zxing-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-sso7-zxing-javase");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
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-2017:0873";
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", cpu:"x86_64", reference:"rh-sso7-1-2.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-freemarker-2.3.23-1.redhat_2.2.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-javapackages-tools-3.4.1-5.15.3.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-keycloak-2.5.5-2.Final_redhat_1.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-keycloak-server-2.5.5-2.Final_redhat_1.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-sso7-libunix-dbus-java-0.8.0-2.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-sso7-libunix-dbus-java-debuginfo-0.8.0-2.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-sso7-libunix-dbus-java-devel-0.8.0-2.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-liquibase-3.4.1-2.redhat_2.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-liquibase-core-3.4.1-2.redhat_2.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-python-javapackages-3.4.1-5.15.3.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-sso7-runtime-1-2.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-twitter4j-4.0.4-1.redhat_3.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-twitter4j-core-4.0.4-1.redhat_3.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-zxing-3.2.1-1.redhat_4.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-zxing-core-3.2.1-1.redhat_4.1.jbcs.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"rh-sso7-zxing-javase-3.2.1-1.redhat_4.1.jbcs.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, "rh-sso7 / rh-sso7-freemarker / rh-sso7-javapackages-tools / etc");
}
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8629
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9589
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2585
www.nessus.org/u?1825fcce
access.redhat.com/errata/RHSA-2017:0873
access.redhat.com/security/cve/cve-2016-8629
access.redhat.com/security/cve/cve-2016-9589
access.redhat.com/security/cve/cve-2017-2585
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
84.2%