6 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
51.9%
The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0423 advisory.
ant: insecure temporary file vulnerability (CVE-2020-1945)
ant: insecure temporary file (CVE-2020-11979)
jenkins: Arbitrary file read vulnerability in workspace browsers (CVE-2021-21602)
jenkins: XSS vulnerability in notification bar (CVE-2021-21603)
jenkins: Improper handling of REST API XML deserialization errors (CVE-2021-21604)
jenkins: Path traversal vulnerability in agent names (CVE-2021-21605)
jenkins: Arbitrary file existence check in file fingerprints (CVE-2021-21606)
jenkins: Excessive memory allocation in graph URLs leads to denial of service (CVE-2021-21607)
jenkins: Stored XSS vulnerability in button labels (CVE-2021-21608)
jenkins: Missing permission check for paths with specific prefix (CVE-2021-21609)
jenkins: Reflected XSS vulnerability in markup formatter preview (CVE-2021-21610)
jenkins: Stored XSS vulnerability on new item page (CVE-2021-21611)
jenkins: Filesystem traversal by privileged users (CVE-2021-21615)
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-2021:0423. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(146566);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");
script_cve_id(
"CVE-2020-1945",
"CVE-2020-11979",
"CVE-2021-21602",
"CVE-2021-21603",
"CVE-2021-21604",
"CVE-2021-21605",
"CVE-2021-21606",
"CVE-2021-21607",
"CVE-2021-21608",
"CVE-2021-21609",
"CVE-2021-21610",
"CVE-2021-21611",
"CVE-2021-21615"
);
script_xref(name:"RHSA", value:"2021:0423");
script_xref(name:"IAVA", value:"2021-A-0039-S");
script_xref(name:"CEA-ID", value:"CEA-2021-0004");
script_xref(name:"CEA-ID", value:"CEA-2021-0025");
script_name(english:"RHEL 8 : OpenShift Container Platform 4.6.17 (RHSA-2021:0423)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as
referenced in the RHSA-2021:0423 advisory.
- ant: insecure temporary file vulnerability (CVE-2020-1945)
- ant: insecure temporary file (CVE-2020-11979)
- jenkins: Arbitrary file read vulnerability in workspace browsers (CVE-2021-21602)
- jenkins: XSS vulnerability in notification bar (CVE-2021-21603)
- jenkins: Improper handling of REST API XML deserialization errors (CVE-2021-21604)
- jenkins: Path traversal vulnerability in agent names (CVE-2021-21605)
- jenkins: Arbitrary file existence check in file fingerprints (CVE-2021-21606)
- jenkins: Excessive memory allocation in graph URLs leads to denial of service (CVE-2021-21607)
- jenkins: Stored XSS vulnerability in button labels (CVE-2021-21608)
- jenkins: Missing permission check for paths with specific prefix (CVE-2021-21609)
- jenkins: Reflected XSS vulnerability in markup formatter preview (CVE-2021-21610)
- jenkins: Stored XSS vulnerability on new item page (CVE-2021-21611)
- jenkins: Filesystem traversal by privileged users (CVE-2021-21615)
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/2021/rhsa-2021_0423.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4026eebc");
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-2021:0423");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1837444");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1903702");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1921322");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925140");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925141");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925143");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925145");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925151");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925156");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925157");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925159");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925160");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925161");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1925674");
script_set_attribute(attribute:"solution", value:
"Update the affected jenkins package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/S:U/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-2021-21605");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(20, 22, 59, 79, 377, 502, 770, 863);
script_set_attribute(attribute:"vendor_severity", value:"Important");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/14");
script_set_attribute(attribute:"patch_publication_date", value:"2021/02/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/02/18");
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:jenkins");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2024 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/ppc64le/rhocp/4.6/debug',
'content/dist/layered/rhel8/ppc64le/rhocp/4.6/os',
'content/dist/layered/rhel8/ppc64le/rhocp/4.6/source/SRPMS',
'content/dist/layered/rhel8/s390x/rhocp/4.6/debug',
'content/dist/layered/rhel8/s390x/rhocp/4.6/os',
'content/dist/layered/rhel8/s390x/rhocp/4.6/source/SRPMS',
'content/dist/layered/rhel8/x86_64/rhocp/4.6/debug',
'content/dist/layered/rhel8/x86_64/rhocp/4.6/os',
'content/dist/layered/rhel8/x86_64/rhocp/4.6/source/SRPMS'
],
'pkgs': [
{'reference':'jenkins-2.263.3.1612434510-1.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'}
]
}
];
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, 'jenkins');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | jenkins | p-cpe:/a:redhat:enterprise_linux:jenkins |
redhat | enterprise_linux | 8 | cpe:/o:redhat:enterprise_linux:8 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11979
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1945
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21602
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21603
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21604
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21605
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21606
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21607
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21608
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21609
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21610
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21611
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21615
www.nessus.org/u?4026eebc
access.redhat.com/errata/RHSA-2021:0423
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1837444
bugzilla.redhat.com/show_bug.cgi?id=1903702
bugzilla.redhat.com/show_bug.cgi?id=1921322
bugzilla.redhat.com/show_bug.cgi?id=1925140
bugzilla.redhat.com/show_bug.cgi?id=1925141
bugzilla.redhat.com/show_bug.cgi?id=1925143
bugzilla.redhat.com/show_bug.cgi?id=1925145
bugzilla.redhat.com/show_bug.cgi?id=1925151
bugzilla.redhat.com/show_bug.cgi?id=1925156
bugzilla.redhat.com/show_bug.cgi?id=1925157
bugzilla.redhat.com/show_bug.cgi?id=1925159
bugzilla.redhat.com/show_bug.cgi?id=1925160
bugzilla.redhat.com/show_bug.cgi?id=1925161
bugzilla.redhat.com/show_bug.cgi?id=1925674
6 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
51.9%