The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:4537 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Rocky Linux Security Advisory RLSA-2021:4537.
##
include('compat.inc');
if (description)
{
script_id(184944);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/07");
script_cve_id("CVE-2021-20325");
script_xref(name:"RLSA", value:"2021:4537");
script_name(english:"Rocky Linux 8 : httpd:2.4 (RLSA-2021:4537)");
script_set_attribute(attribute:"synopsis", value:
"The remote Rocky Linux host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the
RLSA-2021:4537 advisory.
- Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat
Enterprise Linux 8.5.0, causes a security regression compared to the versions shipped in Red Hat
Enterprise Linux 8.4. A user who installs or updates to Red Hat Enterprise Linux 8.5.0 would be vulnerable
to the mentioned CVEs, even if they were properly fixed in Red Hat Enterprise Linux 8.4. CVE-2021-20325
was assigned to that Red Hat specific security regression and it does not affect the upstream versions of
httpd. (CVE-2021-20325)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://errata.rockylinux.org/RLSA-2021:4537");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2017321");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
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:U/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:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-20325");
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:"2021/11/09");
script_set_attribute(attribute:"patch_publication_date", value:"2021/11/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/07");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd-filesystem");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd-manual");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:httpd-tools-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_http2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_http2-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_http2-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_ldap-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_md");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_md-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_md-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_proxy_html");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_proxy_html-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_session");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_session-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_ssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:mod_ssl-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:rocky:linux:8");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Rocky Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RockyLinux/release", "Host/RockyLinux/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RockyLinux/release');
if (isnull(os_release) || 'Rocky Linux' >!< os_release) audit(AUDIT_OS_NOT, 'Rocky Linux');
var os_ver = pregmatch(pattern: "Rocky(?: Linux)? release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Rocky Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Rocky Linux 8.x', 'Rocky Linux ' + os_ver);
if (!get_kb_item('Host/RockyLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Rocky Linux', cpu);
var module_ver = get_kb_item('Host/RockyLinux/appstream/httpd');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module httpd:2.4');
if ('2.4' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module httpd:' + module_ver);
var appstreams = {
'httpd:2.4': [
{'reference':'httpd-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debugsource-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debugsource-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-devel-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-devel-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-filesystem-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-manual-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-1.15.7-3.module+el8.4.0+553+7a69454b', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-1.15.7-3.module+el8.4.0+553+7a69454b', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-1.15.7-3.module+el8.5.0+695+1fa8055e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-1.15.7-3.module+el8.5.0+695+1fa8055e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debuginfo-1.15.7-3.module+el8.4.0+553+7a69454b', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debuginfo-1.15.7-3.module+el8.4.0+553+7a69454b', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debuginfo-1.15.7-3.module+el8.5.0+695+1fa8055e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debuginfo-1.15.7-3.module+el8.5.0+695+1fa8055e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debugsource-1.15.7-3.module+el8.4.0+553+7a69454b', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debugsource-1.15.7-3.module+el8.4.0+553+7a69454b', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debugsource-1.15.7-3.module+el8.5.0+695+1fa8055e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_http2-debugsource-1.15.7-3.module+el8.5.0+695+1fa8055e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_md-2.0.8-8.module+el8.4.0+553+7a69454b', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-2.0.8-8.module+el8.4.0+553+7a69454b', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-2.0.8-8.module+el8.5.0+695+1fa8055e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-2.0.8-8.module+el8.5.0+695+1fa8055e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debuginfo-2.0.8-8.module+el8.4.0+553+7a69454b', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debuginfo-2.0.8-8.module+el8.4.0+553+7a69454b', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debuginfo-2.0.8-8.module+el8.5.0+695+1fa8055e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debuginfo-2.0.8-8.module+el8.5.0+695+1fa8055e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debugsource-2.0.8-8.module+el8.4.0+553+7a69454b', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debugsource-2.0.8-8.module+el8.4.0+553+7a69454b', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debugsource-2.0.8-8.module+el8.5.0+695+1fa8055e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_md-debugsource-2.0.8-8.module+el8.5.0+695+1fa8055e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_proxy_html-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_proxy_html-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_proxy_html-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_proxy_html-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_session-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_session-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_session-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_session-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ssl-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_ssl-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_ssl-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'mod_ssl-debuginfo-2.4.37-43.module+el8.5.0+714+5ec56ee8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
]
};
var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
var appstream = NULL;
var appstream_name = NULL;
var appstream_version = NULL;
var appstream_split = split(module, sep:':', keep:FALSE);
if (!empty_or_null(appstream_split)) {
appstream_name = appstream_split[0];
appstream_version = appstream_split[1];
if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/RockyLinux/appstream/' + appstream_name);
}
if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
appstreams_found++;
foreach var package_array ( appstreams[module] ) {
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;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = 'Rocky-' + package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
if (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)) flag++;
}
}
}
}
if (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module httpd:2.4');
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'httpd / httpd-debuginfo / httpd-debugsource / httpd-devel / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
rocky | linux | httpd | p-cpe:/a:rocky:linux:httpd |
rocky | linux | httpd-debuginfo | p-cpe:/a:rocky:linux:httpd-debuginfo |
rocky | linux | httpd-debugsource | p-cpe:/a:rocky:linux:httpd-debugsource |
rocky | linux | httpd-devel | p-cpe:/a:rocky:linux:httpd-devel |
rocky | linux | httpd-filesystem | p-cpe:/a:rocky:linux:httpd-filesystem |
rocky | linux | httpd-manual | p-cpe:/a:rocky:linux:httpd-manual |
rocky | linux | httpd-tools | p-cpe:/a:rocky:linux:httpd-tools |
rocky | linux | httpd-tools-debuginfo | p-cpe:/a:rocky:linux:httpd-tools-debuginfo |
rocky | linux | mod_http2 | p-cpe:/a:rocky:linux:mod_http2 |
rocky | linux | mod_http2-debuginfo | p-cpe:/a:rocky:linux:mod_http2-debuginfo |