CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
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
AI Score
Confidence
Low
EPSS
Percentile
93.4%
The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.
glibc: Incorrect handling of RPATH in elf/dl-load.c can be used to execute code loaded from arbitrary libraries (CVE-2017-16997)
glibc: regular-expression match via proceed_next_node in posix/regexec.c leads to heap-based buffer over- read (CVE-2019-9169)
The posix_spawn_file_actions_addopen function in glibc before 2.20 does not copy its path argument in accordance with the POSIX specification, which allows context-dependent attackers to trigger use-after- free vulnerabilities. (CVE-2014-4043)
Note that Nessus has not tested for these issues but has instead relied on the package manager’s report that the package is installed.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory glibc. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(199112);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");
script_cve_id(
"CVE-2014-4043",
"CVE-2014-9761",
"CVE-2015-8776",
"CVE-2015-8778",
"CVE-2015-8779",
"CVE-2016-1234",
"CVE-2016-4429",
"CVE-2016-10228",
"CVE-2017-8804",
"CVE-2017-12132",
"CVE-2017-15670",
"CVE-2017-15671",
"CVE-2017-16997",
"CVE-2018-6485",
"CVE-2019-9169",
"CVE-2019-1010022",
"CVE-2020-1752",
"CVE-2023-4806",
"CVE-2023-4813"
);
script_name(english:"RHEL 7 : glibc (Unpatched Vulnerability)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 7 host is affected by multiple vulnerabilities that will not be patched.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple
vulnerabilities that have been acknowledged by the vendor but will not be patched.
- glibc: Incorrect handling of RPATH in elf/dl-load.c can be used to execute code loaded from arbitrary
libraries (CVE-2017-16997)
- glibc: regular-expression match via proceed_next_node in posix/regexec.c leads to heap-based buffer over-
read (CVE-2019-9169)
- The posix_spawn_file_actions_addopen function in glibc before 2.20 does not copy its path argument in
accordance with the POSIX specification, which allows context-dependent attackers to trigger use-after-
free vulnerabilities. (CVE-2014-4043)
Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package
is installed.");
script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation
guidance.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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-2017-16997");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-9169");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vendor_unpatched", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2014/06/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/03");
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:compat-glibc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:glibc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libtirpc");
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) 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("global_settings/vendor_unpatched"))
exit(0, "Unpatched Vulnerabilities Detection not active.");
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 = [
{
'pkgs': [
{'reference':'compat-glibc', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'compat-glibc', 'cves':['CVE-2014-9761', 'CVE-2015-8776', 'CVE-2015-8778', 'CVE-2015-8779', 'CVE-2016-1234', 'CVE-2016-10228', 'CVE-2017-8804', 'CVE-2017-12132', 'CVE-2017-15670', 'CVE-2017-15671', 'CVE-2017-16997', 'CVE-2018-6485', 'CVE-2023-4806', 'CVE-2023-4813']},
{'reference':'glibc', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'glibc', 'cves':['CVE-2014-4043', 'CVE-2016-1234', 'CVE-2016-4429', 'CVE-2016-10228', 'CVE-2017-8804', 'CVE-2017-15671', 'CVE-2019-9169', 'CVE-2019-1010022', 'CVE-2020-1752', 'CVE-2023-4806', 'CVE-2023-4813']},
{'reference':'libtirpc', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'libtirpc', 'cves':['CVE-2016-4429']}
]
}
];
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
foreach var pkg ( constraint_array['pkgs'] ) {
var unpatched_pkg = NULL;
var _release = NULL;
var sp = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var exists_check = NULL;
var cves = NULL;
if (!empty_or_null(pkg['unpatched_pkg'])) unpatched_pkg = pkg['unpatched_pkg'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (unpatched_pkg &&
_release &&
(!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
unpatched_package_exists(release:_release, package:unpatched_pkg, cves: cves)) flag++;
}
}
if (flag)
{
var extra = NULL;
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : unpatched_packages_report()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'compat-glibc / glibc / libtirpc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | libtirpc | p-cpe:/a:redhat:enterprise_linux:libtirpc |
redhat | enterprise_linux | compat-glibc | p-cpe:/a:redhat:enterprise_linux:compat-glibc |
redhat | enterprise_linux | glibc | p-cpe:/a:redhat:enterprise_linux:glibc |
redhat | enterprise_linux | 7 | cpe:/o:redhat:enterprise_linux:7 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4043
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9761
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8776
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8778
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8779
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10228
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1234
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4429
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12132
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15670
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15671
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16997
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8804
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6485
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1010022
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9169
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1752
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4806
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4813
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
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
AI Score
Confidence
Low
EPSS
Percentile
93.4%