The remote host is affected by the vulnerability described in GLSA-202104-05 (GRUB: Multiple vulnerabilities)
Multiple vulnerabilities have been discovered in GRUB. Please review the CVE identifiers referenced below for details.
Impact :
Please review the referenced CVE identifiers for details.
Workaround :
There is no known workaround at this time.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 202104-05.
#
# The advisory text is Copyright (C) 2001-2024 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('deprecated_nasl_level.inc');
include("compat.inc");
if (description)
{
script_id(149217);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/12");
script_cve_id("CVE-2020-10713", "CVE-2020-14308", "CVE-2020-14309", "CVE-2020-14310", "CVE-2020-14311", "CVE-2020-14372", "CVE-2020-15705", "CVE-2020-15706", "CVE-2020-15707", "CVE-2020-25632", "CVE-2020-25647", "CVE-2020-27749", "CVE-2020-27779", "CVE-2021-20225", "CVE-2021-20233");
script_xref(name:"GLSA", value:"202104-05");
script_xref(name:"CEA-ID", value:"CEA-2020-0061");
script_name(english:"GLSA-202104-05 : GRUB: Multiple vulnerabilities");
script_summary(english:"Checks for updated package(s) in /var/db/pkg");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Gentoo host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"The remote host is affected by the vulnerability described in GLSA-202104-05
(GRUB: Multiple vulnerabilities)
Multiple vulnerabilities have been discovered in GRUB. Please review the
CVE identifiers referenced below for details.
Impact :
Please review the referenced CVE identifiers for details.
Workaround :
There is no known workaround at this time."
);
script_set_attribute(
attribute:"see_also",
value:"https://wiki.gentoo.org/wiki/GRUB2_Quick_Start"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/202104-05"
);
script_set_attribute(
attribute:"solution",
value:
"All GRUB users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=sys-devel/grub-2.06_rc1'
After upgrading, make sure to run the grub-install command with options
appropriate for your system. See the GRUB Quick Start guide in the
references below for examples. Your system will be vulnerable until this
action is performed."
);
script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:H/UI:N/S:C/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-2021-20233");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:grub");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/29");
script_set_attribute(attribute:"patch_publication_date", value:"2021/04/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/05/03");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Gentoo Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (qpkg_check(package:"sys-devel/grub", unaffected:make_list("ge 2.06_rc1"), vulnerable:make_list("lt 2.06_rc1"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "GRUB");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10713
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14308
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14309
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14310
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14311
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14372
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15705
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15706
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15707
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25632
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25647
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27749
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27779
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20225
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20233
security.gentoo.org/glsa/202104-05
wiki.gentoo.org/wiki/GRUB2_Quick_Start