5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
7.5 High
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.2 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.9%
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:3497 advisory.
Red Hat Single Sign-On 7.4 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 7.4.2 security update on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.4.1, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body (CVE-2020-10758)
* keycloak: security headers missing on REST endpoints (CVE-2020-1728)
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.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:3497. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(139671);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");
script_cve_id("CVE-2020-1728", "CVE-2020-10758");
script_xref(name:"RHSA", value:"2020:3497");
script_name(english:"RHEL 8 : Red Hat Single Sign-On 7.4.2 security update on RHEL 8 (Important) (RHSA-2020:3497)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for Red Hat Single Sign-On 7.4.2.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:3497 advisory.
Red Hat Single Sign-On 7.4 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 7.4.2 security update on RHEL 8 serves as a replacement for Red Hat
Single Sign-On 7.4.1, and includes bug fixes and enhancements, which are documented in the Release Notes
document linked to in the References.
Security Fix(es):
* keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than
actual byte count of request body (CVE-2020-10758)
* keycloak: security headers missing on REST endpoints (CVE-2020-1728)
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.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
# https://access.redhat.com/security/data/csaf/v2/advisories/2020/rhsa-2020_3497.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?26b01a00");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:3497");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1800585");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1843849");
script_set_attribute(attribute:"solution", value:
"Update the RHEL Red Hat Single Sign-On 7.4.2 package based on the guidance in RHSA-2020:3497.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
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:R/S:U/C:L/I:L/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-2020-1728");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(358, 400);
script_set_attribute(attribute:"vendor_severity", value:"Important");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/06");
script_set_attribute(attribute:"patch_publication_date", value:"2020/08/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/18");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
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:"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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
include('rhel.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
var constraints = [
{
'repo_relative_urls': [
'content/dist/layered/rhel8/x86_64/rh-sso/7.3/debug',
'content/dist/layered/rhel8/x86_64/rh-sso/7.3/os',
'content/dist/layered/rhel8/x86_64/rh-sso/7.3/source/SRPMS',
'content/dist/layered/rhel8/x86_64/rh-sso/7.4/debug',
'content/dist/layered/rhel8/x86_64/rh-sso/7.4/os',
'content/dist/layered/rhel8/x86_64/rh-sso/7.4/source/SRPMS'
],
'pkgs': [
{'reference':'rh-sso7-keycloak-9.0.5-1.redhat_00001.1.el8sso', 'release':'8', 'el_string':'el8sso', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'rh-sso'},
{'reference':'rh-sso7-keycloak-server-9.0.5-1.redhat_00001.1.el8sso', 'release':'8', 'el_string':'el8sso', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'rh-sso'}
]
}
];
var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
foreach var pkg ( constraint_array['pkgs'] ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
var cves = NULL;
if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (reference &&
_release &&
rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
(applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
}
}
if (flag)
{
var extra = NULL;
if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
else extra = rpm_report_get();
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
else
{
var 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');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | rh-sso7-keycloak | p-cpe:/a:redhat:enterprise_linux:rh-sso7-keycloak |
redhat | enterprise_linux | rh-sso7-keycloak-server | p-cpe:/a:redhat:enterprise_linux:rh-sso7-keycloak-server |
redhat | enterprise_linux | 8 | cpe:/o:redhat:enterprise_linux:8 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10758
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1728
www.nessus.org/u?26b01a00
access.redhat.com/errata/RHSA-2020:3497
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1800585
bugzilla.redhat.com/show_bug.cgi?id=1843849
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
7.5 High
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.2 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.9%