CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
36.7%
The remote host is missing an update for the Huawei EulerOS
# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.1.2.2023.1174");
script_cve_id("CVE-2021-35937", "CVE-2021-35938", "CVE-2021-35939");
script_tag(name:"creation_date", value:"2023-01-12 04:15:41 +0000 (Thu, 12 Jan 2023)");
script_version("2024-02-05T14:36:57+0000");
script_tag(name:"last_modification", value:"2024-02-05 14:36:57 +0000 (Mon, 05 Feb 2024)");
script_tag(name:"cvss_base", value:"6.5");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:M/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/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:"2022-11-29 17:18:34 +0000 (Tue, 29 Nov 2022)");
script_name("Huawei EulerOS: Security Advisory for rpm (EulerOS-SA-2023-1174)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2023 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\.10\.0");
script_xref(name:"Advisory-ID", value:"EulerOS-SA-2023-1174");
script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2023-1174");
script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'rpm' package(s) announced via the EulerOS-SA-2023-1174 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2021-35937)
A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2021-35938)
It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2021-35939)");
script_tag(name:"affected", value:"'rpm' package(s) on Huawei EulerOS Virtualization release 2.10.0.");
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-2.10.0") {
if(!isnull(res = isrpmvuln(pkg:"python3-rpm", rpm:"python3-rpm~4.15.1~17.h42.eulerosv2r10", rls:"EULEROSVIRT-2.10.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"rpm", rpm:"rpm~4.15.1~17.h42.eulerosv2r10", rls:"EULEROSVIRT-2.10.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"rpm-libs", rpm:"rpm-libs~4.15.1~17.h42.eulerosv2r10", rls:"EULEROSVIRT-2.10.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"rpm-plugin-systemd-inhibit", rpm:"rpm-plugin-systemd-inhibit~4.15.1~17.h42.eulerosv2r10", rls:"EULEROSVIRT-2.10.0"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
36.7%