CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
31.4%
This update for grub2 fixes the following issues :
CVE-2020-15705: Fail kernel validation without shim protocol (bsc#1174421).
Add fibre channel device’s ofpath support to grub-ofpathname and search hint to speed up root device discovery (bsc#1172745).
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:2304-1.
# The text itself is copyright (C) SUSE.
#
include('compat.inc');
if (description)
{
script_id(139839);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/06");
script_cve_id("CVE-2020-15705");
script_xref(name:"IAVA", value:"2020-A-0349");
script_xref(name:"CEA-ID", value:"CEA-2020-0061");
script_name(english:"SUSE SLES12 Security Update : grub2 (SUSE-SU-2020:2304-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"This update for grub2 fixes the following issues :
CVE-2020-15705: Fail kernel validation without shim protocol
(bsc#1174421).
Add fibre channel device's ofpath support to grub-ofpathname and
search hint to speed up root device discovery (bsc#1172745).
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1172745");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1174421");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-15705/");
# https://www.suse.com/support/update/announcement/2020/suse-su-20202304-1
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cb04a4b7");
script_set_attribute(attribute:"solution", value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.
Alternatively you can run the command listed for your product :
SUSE OpenStack Cloud Crowbar 8 :
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-2304=1
SUSE OpenStack Cloud 8 :
zypper in -t patch SUSE-OpenStack-Cloud-8-2020-2304=1
SUSE Linux Enterprise Server for SAP 12-SP3 :
zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-2304=1
SUSE Linux Enterprise Server 12-SP3-LTSS :
zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-2304=1
SUSE Linux Enterprise Server 12-SP3-BCL :
zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-2304=1
SUSE Enterprise Storage 5 :
zypper in -t patch SUSE-Storage-5-2020-2304=1
HPE Helion Openstack 8 :
zypper in -t patch HPE-Helion-OpenStack-8-2020-2304=1");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/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:L/AC:H/PR:H/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-2020-15705");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/29");
script_set_attribute(attribute:"patch_publication_date", value:"2020/08/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/26");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:grub2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:grub2-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:grub2-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:grub2-i386-pc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:grub2-s390x-emu");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:grub2-x86_64-efi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:grub2-x86_64-xen");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP3", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"grub2-i386-pc-2.02-4.61.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"grub2-x86_64-efi-2.02-4.61.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"grub2-x86_64-xen-2.02-4.61.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"s390x", reference:"grub2-s390x-emu-2.02-4.61.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"grub2-2.02-4.61.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"grub2-debuginfo-2.02-4.61.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"grub2-debugsource-2.02-4.61.1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "grub2");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | grub2 | p-cpe:/a:novell:suse_linux:grub2 |
novell | suse_linux | grub2-debuginfo | p-cpe:/a:novell:suse_linux:grub2-debuginfo |
novell | suse_linux | grub2-debugsource | p-cpe:/a:novell:suse_linux:grub2-debugsource |
novell | suse_linux | grub2-i386-pc | p-cpe:/a:novell:suse_linux:grub2-i386-pc |
novell | suse_linux | grub2-s390x-emu | p-cpe:/a:novell:suse_linux:grub2-s390x-emu |
novell | suse_linux | grub2-x86_64-efi | p-cpe:/a:novell:suse_linux:grub2-x86_64-efi |
novell | suse_linux | grub2-x86_64-xen | p-cpe:/a:novell:suse_linux:grub2-x86_64-xen |
novell | suse_linux | 12 | cpe:/o:novell:suse_linux:12 |
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
31.4%