10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 High
AI Score
Confidence
Low
0.518 Medium
EPSS
Percentile
97.6%
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:6782 advisory.
Red Hat Single Sign-On 7.5 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 7.5.3 on RHEL 7 serves as a replacement for Red Hat Single Sign-On 7.5.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* jackson-databind: denial of service via a large depth of nested objects (CVE-2020-36518)
* wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security enabled (CVE-2022-0866)
* xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr (CVE-2022-0084)
* netty: control chars in header names may lead to HTTP request smuggling (CVE-2021-43797)
* keycloak-saml-core: keycloak: Uploading of SAML javascript protocol mapper scripts through the admin (CVE-2022-2668)
* keycloak: Stored XSS in groups dropdown (CVE-2022-0225)
* h2: Remote Code Execution in Console (CVE-2021-42392)
* keycloak-core: keycloak: improper input validation permits script injection (CVE-2022-2256)
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.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2022:6782. The text
# itself is copyright (C) Red Hat, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(165657);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");
script_cve_id(
"CVE-2020-36518",
"CVE-2021-42392",
"CVE-2021-43797",
"CVE-2022-0084",
"CVE-2022-0225",
"CVE-2022-0866",
"CVE-2022-2256",
"CVE-2022-2668"
);
script_xref(name:"RHSA", value:"2022:6782");
script_name(english:"RHEL 7 : Red Hat Single Sign-On 7.5.3 security update on RHEL 7 (Moderate) (RHSA-2022:6782)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for Red Hat Single Sign-On 7.5.3.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2022:6782 advisory.
Red Hat Single Sign-On 7.5 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 7.5.3 on RHEL 7 serves as a replacement for Red Hat Single Sign-On
7.5.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked
to in the References.
Security Fix(es):
* jackson-databind: denial of service via a large depth of nested objects (CVE-2020-36518)
* wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security
enabled (CVE-2022-0866)
* xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr (CVE-2022-0084)
* netty: control chars in header names may lead to HTTP request smuggling (CVE-2021-43797)
* keycloak-saml-core: keycloak: Uploading of SAML javascript protocol mapper scripts through the admin
(CVE-2022-2668)
* keycloak: Stored XSS in groups dropdown (CVE-2022-0225)
* h2: Remote Code Execution in Console (CVE-2021-42392)
* keycloak-core: keycloak: improper input validation permits script injection (CVE-2022-2256)
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/2022/rhsa-2022_6782.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?55856661");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2022:6782");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2031958");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2039403");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2040268");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2060929");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2064226");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2064698");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2101942");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2115392");
script_set_attribute(attribute:"solution", value:
"Update the RHEL Red Hat Single Sign-On 7.5.3 package based on the guidance in RHSA-2022:6782.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/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:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-42392");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(79, 400, 440, 444, 502, 770, 1220);
script_set_attribute(attribute:"vendor_severity", value:"Moderate");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/12/09");
script_set_attribute(attribute:"patch_publication_date", value:"2022/10/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/10/05");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
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) 2022-2024 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: '7')) 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);
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/rhel/server/7/7Server/x86_64/rh-sso/7.5/debug',
'content/dist/rhel/server/7/7Server/x86_64/rh-sso/7.5/os',
'content/dist/rhel/server/7/7Server/x86_64/rh-sso/7.5/source/SRPMS'
],
'pkgs': [
{'reference':'rh-sso7-keycloak-15.0.8-1.redhat_00001.1.el7sso', 'release':'7', 'el_string':'el7sso', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'rh-sso'},
{'reference':'rh-sso7-keycloak-server-15.0.8-1.redhat_00001.1.el7sso', 'release':'7', 'el_string':'el7sso', '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_HOLE,
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 | 7 | cpe:/o:redhat:enterprise_linux:7 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36518
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42392
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43797
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0084
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0225
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0866
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2256
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2668
www.nessus.org/u?55856661
access.redhat.com/errata/RHSA-2022:6782
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=2031958
bugzilla.redhat.com/show_bug.cgi?id=2039403
bugzilla.redhat.com/show_bug.cgi?id=2040268
bugzilla.redhat.com/show_bug.cgi?id=2060929
bugzilla.redhat.com/show_bug.cgi?id=2064226
bugzilla.redhat.com/show_bug.cgi?id=2064698
bugzilla.redhat.com/show_bug.cgi?id=2101942
bugzilla.redhat.com/show_bug.cgi?id=2115392
10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 High
AI Score
Confidence
Low
0.518 Medium
EPSS
Percentile
97.6%