The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:3291 advisory.
ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)
ruby: ReDoS vulnerability in URI (CVE-2023-28755)
ruby: ReDoS vulnerability in Time (CVE-2023-28756)
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-2023:3291. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(176320);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");
script_cve_id("CVE-2021-33621", "CVE-2023-28755", "CVE-2023-28756");
script_xref(name:"RHSA", value:"2023:3291");
script_name(english:"RHEL 7 : rh-ruby27-ruby (RHSA-2023:3291)");
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 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2023:3291 advisory.
- ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)
- ruby: ReDoS vulnerability in URI (CVE-2023-28755)
- ruby: ReDoS vulnerability in Time (CVE-2023-28756)
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/2023/rhsa-2023_3291.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ae74358c");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2149267");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2149706");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184059");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184061");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:3291");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/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-2021-33621");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(20, 113);
script_set_attribute(attribute:"vendor_severity", value:"Moderate");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/11/18");
script_set_attribute(attribute:"patch_publication_date", value:"2023/05/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/05/24");
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-ruby27-ruby");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-ruby-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-ruby-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-ruby-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-bigdecimal");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-bundler");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-did_you_mean");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-io-console");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-irb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-json");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-minitest");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-net-telnet");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-openssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-power_assert");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-psych");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-racc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-rake");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-rdoc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-test-unit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-xmlrpc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygems");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygems-devel");
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) 2023-2024 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-alt/server/7/7Server/power9/ppc64le/rhscl/1/debug',
'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhscl/1/os',
'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhscl/1/source/SRPMS',
'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/rhscl/1/debug',
'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/rhscl/1/os',
'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/rhscl/1/source/SRPMS',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhscl/1/debug',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhscl/1/os',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhscl/1/source/SRPMS',
'content/dist/rhel/power/7/7Server/ppc64/rhscl/1/debug',
'content/dist/rhel/power/7/7Server/ppc64/rhscl/1/os',
'content/dist/rhel/power/7/7Server/ppc64/rhscl/1/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhscl/1/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhscl/1/os',
'content/dist/rhel/server/7/7Server/x86_64/rhscl/1/source/SRPMS',
'content/dist/rhel/system-z/7/7Server/s390x/rhscl/1/debug',
'content/dist/rhel/system-z/7/7Server/s390x/rhscl/1/os',
'content/dist/rhel/system-z/7/7Server/s390x/rhscl/1/source/SRPMS',
'content/dist/rhel/workstation/7/7Workstation/x86_64/rhscl/1/debug',
'content/dist/rhel/workstation/7/7Workstation/x86_64/rhscl/1/os',
'content/dist/rhel/workstation/7/7Workstation/x86_64/rhscl/1/source/SRPMS'
],
'pkgs': [
{'reference':'rh-ruby27-ruby-2.7.8-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-2.7.8-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-2.7.8-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-devel-2.7.8-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-devel-2.7.8-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-devel-2.7.8-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-doc-2.7.8-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-libs-2.7.8-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-libs-2.7.8-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-ruby-libs-2.7.8-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-bigdecimal-2.0.0-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-bigdecimal-2.0.0-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-bigdecimal-2.0.0-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-bundler-2.2.24-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-did_you_mean-1.4.0-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-io-console-0.5.6-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-io-console-0.5.6-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-io-console-0.5.6-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-irb-1.2.6-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-json-2.3.0-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-json-2.3.0-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-json-2.3.0-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-minitest-5.13.0-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-net-telnet-0.2.0-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-openssl-2.1.4-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-openssl-2.1.4-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-openssl-2.1.4-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-power_assert-1.1.7-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-psych-3.1.0-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-psych-3.1.0-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-psych-3.1.0-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-racc-1.4.16-132.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-racc-1.4.16-132.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-racc-1.4.16-132.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-rake-13.0.1-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-rdoc-6.2.1.1-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-test-unit-3.3.4-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygem-xmlrpc-0.3.0-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygems-3.1.6-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rh-ruby27-rubygems-devel-3.1.6-132.el7', 'release':'7', 'rpm_spec_vers_cmp':TRUE}
]
}
];
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-ruby27-ruby / rh-ruby27-ruby-devel / rh-ruby27-ruby-doc / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | 7 | cpe:/o:redhat:enterprise_linux:7 |
redhat | enterprise_linux | rh-ruby27-ruby | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-ruby |
redhat | enterprise_linux | rh-ruby27-ruby-devel | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-ruby-devel |
redhat | enterprise_linux | rh-ruby27-ruby-doc | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-ruby-doc |
redhat | enterprise_linux | rh-ruby27-ruby-libs | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-ruby-libs |
redhat | enterprise_linux | rh-ruby27-rubygem-bigdecimal | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-bigdecimal |
redhat | enterprise_linux | rh-ruby27-rubygem-bundler | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-bundler |
redhat | enterprise_linux | rh-ruby27-rubygem-did_you_mean | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-did_you_mean |
redhat | enterprise_linux | rh-ruby27-rubygem-io-console | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-io-console |
redhat | enterprise_linux | rh-ruby27-rubygem-irb | p-cpe:/a:redhat:enterprise_linux:rh-ruby27-rubygem-irb |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33621
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28755
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28756
www.nessus.org/u?ae74358c
access.redhat.com/errata/RHSA-2023:3291
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=2149267
bugzilla.redhat.com/show_bug.cgi?id=2149706
bugzilla.redhat.com/show_bug.cgi?id=2184059
bugzilla.redhat.com/show_bug.cgi?id=2184061