6.4 Medium
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
7.4 High
AI Score
Confidence
High
4.4 Medium
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
30.2%
The remote host is missing an update for the Huawei EulerOS
# SPDX-FileCopyrightText: 2022 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.1.2.2022.1194");
script_cve_id("CVE-2020-15705");
script_tag(name:"creation_date", value:"2022-02-24 03:23:47 +0000 (Thu, 24 Feb 2022)");
script_version("2024-02-05T14:36:56+0000");
script_tag(name:"last_modification", value:"2024-02-05 14:36:56 +0000 (Mon, 05 Feb 2024)");
script_tag(name:"cvss_base", value:"4.4");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:P/I:P/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-08-03 17:08:31 +0000 (Mon, 03 Aug 2020)");
script_name("Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2022-1194)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 Greenbone AG");
script_family("Huawei EulerOS Local Security Checks");
script_dependencies("gb_huawei_euleros_consolidation.nasl");
script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROS\-2\.0SP8");
script_xref(name:"Advisory-ID", value:"EulerOS-SA-2022-1194");
script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2022-1194");
script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'grub2' package(s) announced via the EulerOS-SA-2022-1194 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.(CVE-2020-15705)");
script_tag(name:"affected", value:"'grub2' package(s) on Huawei EulerOS V2.0SP8.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "EULEROS-2.0SP8") {
if(!isnull(res = isrpmvuln(pkg:"grub2-common", rpm:"grub2-common~2.02~62.h34.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"grub2-efi-aa64", rpm:"grub2-efi-aa64~2.02~62.h34.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"grub2-efi-aa64-cdboot", rpm:"grub2-efi-aa64-cdboot~2.02~62.h34.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"grub2-efi-aa64-modules", rpm:"grub2-efi-aa64-modules~2.02~62.h34.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"grub2-tools", rpm:"grub2-tools~2.02~62.h34.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"grub2-tools-extra", rpm:"grub2-tools-extra~2.02~62.h34.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"grub2-tools-minimal", rpm:"grub2-tools-minimal~2.02~62.h34.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
6.4 Medium
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
7.4 High
AI Score
Confidence
High
4.4 Medium
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
30.2%