6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
6.2 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
11.8%
The remote host is missing an update for the Huawei EulerOS
# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.1.2.2021.1738");
script_cve_id("CVE-2020-13776");
script_tag(name:"creation_date", value:"2021-04-13 06:15:38 +0000 (Tue, 13 Apr 2021)");
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:"6.2");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-06-19 14:12:26 +0000 (Fri, 19 Jun 2020)");
script_name("Huawei EulerOS: Security Advisory for systemd (EulerOS-SA-2021-1738)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 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=EULEROSVIRT\-2\.9\.0");
script_xref(name:"Advisory-ID", value:"EulerOS-SA-2021-1738");
script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2021-1738");
script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'systemd' package(s) announced via the EulerOS-SA-2021-1738 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"A flaw was found in systemd, where it mishandles numerical usernames beginning with decimal digits, or '0x' followed by hexadecimal digits. When the usernames are used by systemd, for example in service units, an unexpected user may be used instead. In some particular configurations, this flaw allows local attackers to elevate their privileges.(CVE-2020-13776)");
script_tag(name:"affected", value:"'systemd' package(s) on Huawei EulerOS Virtualization release 2.9.0.");
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 == "EULEROSVIRT-2.9.0") {
if(!isnull(res = isrpmvuln(pkg:"systemd", rpm:"systemd~243~18.h78.eulerosv2r9", rls:"EULEROSVIRT-2.9.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"systemd-container", rpm:"systemd-container~243~18.h78.eulerosv2r9", rls:"EULEROSVIRT-2.9.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"systemd-libs", rpm:"systemd-libs~243~18.h78.eulerosv2r9", rls:"EULEROSVIRT-2.9.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"systemd-udev", rpm:"systemd-udev~243~18.h78.eulerosv2r9", rls:"EULEROSVIRT-2.9.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"systemd-udev-compat", rpm:"systemd-udev-compat~243~18.h78.eulerosv2r9", rls:"EULEROSVIRT-2.9.0"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
6.2 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
11.8%