7.2 High
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
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
46.9%
The remote host is missing an update for the
# 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("1.3.6.1.4.1.25623.1.1.10.2022.0037");
script_cve_id("CVE-2021-4034");
script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
script_version("2024-02-02T05:06:09+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"7.2");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2022-01-31 17:50:48 +0000 (Mon, 31 Jan 2022)");
script_name("Mageia: Security Advisory (MGASA-2022-0037)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 Greenbone AG");
script_family("Mageia Linux Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA8");
script_xref(name:"Advisory-ID", value:"MGASA-2022-0037");
script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2022-0037.html");
script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=29944");
script_xref(name:"URL", value:"https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt");
script_xref(name:"URL", value:"https://access.redhat.com/errata/RHSA-2022:0267");
script_tag(name:"summary", value:"The remote host is missing an update for the 'polkit' package(s) announced via the MGASA-2022-0037 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"A local privilege escalation vulnerability was found on polkit's pkexec
utility. The pkexec application is a setuid tool designed to allow unprivileged
users to run commands as privileged users according predefined policies. The
current version of pkexec doesn't handle the calling parameters count correctly
and ends trying to execute environment variables as commands. An attacker can
leverage this by crafting environment variables in such a way it'll induce
pkexec to execute arbitrary code. When successfully executed the attack can
cause a local privilege escalation given unprivileged users administrative
rights on the target machine (CVE-2021-4034).");
script_tag(name:"affected", value:"'polkit' package(s) on Mageia 8.");
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 == "MAGEIA8") {
if(!isnull(res = isrpmvuln(pkg:"lib64polkit-gir1.0", rpm:"lib64polkit-gir1.0~0.118~1.2.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"lib64polkit1-devel", rpm:"lib64polkit1-devel~0.118~1.2.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"lib64polkit1_0", rpm:"lib64polkit1_0~0.118~1.2.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libpolkit-gir1.0", rpm:"libpolkit-gir1.0~0.118~1.2.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libpolkit1-devel", rpm:"libpolkit1-devel~0.118~1.2.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libpolkit1_0", rpm:"libpolkit1_0~0.118~1.2.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"polkit", rpm:"polkit~0.118~1.2.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
7.2 High
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
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
46.9%