4.4 Medium
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
6.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
0.0005 Low
EPSS
Percentile
17.5%
An update of the docker package has been released.
docker cp
into a specially-crafted container can result in Unix file permission changes for existing files in the hosts filesystem, widening access to others. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers do not need to be restarted. (CVE-2021-41089)Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from VMware Security Advisory PHSA-2021-4.0-0113. The text
# itself is copyright (C) VMware, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(153973);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/10/12");
script_cve_id("CVE-2021-41089");
script_name(english:"Photon OS 4.0: Docker PHSA-2021-4.0-0113");
script_set_attribute(attribute:"synopsis", value:
"The remote PhotonOS host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"An update of the docker package has been released.
- Moby is an open-source project created by Docker to enable software containerization. A bug was found in
Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container
can result in Unix file permission changes for existing files in the hosts filesystem, widening access
to others. This bug does not directly allow files to be read, modified, or executed without an additional
cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this
version as soon as possible. Running containers do not need to be restarted. (CVE-2021-41089)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://github.com/vmware/photon/wiki/Security-Updates-4.0-113.md");
script_set_attribute(attribute:"solution", value:
"Update the affected Linux packages.");
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:L/PR:L/UI:N/S:C/C:L/I:L/A:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-41089");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/09/30");
script_set_attribute(attribute:"patch_publication_date", value:"2021/10/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:docker");
script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:photonos:4.0");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"PhotonOS Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/PhotonOS/release", "Host/PhotonOS/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);
var release = get_kb_item('Host/PhotonOS/release');
if (isnull(release) || release !~ "^VMware Photon") audit(AUDIT_OS_NOT, 'PhotonOS');
if (release !~ "^VMware Photon (?:Linux|OS) 4\.0(\D|$)") audit(AUDIT_OS_NOT, 'PhotonOS 4.0');
if (!get_kb_item('Host/PhotonOS/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'PhotonOS', cpu);
var flag = 0;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'docker-19.03.15-5.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'docker-cli-19.03.15-5.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'docker-doc-19.03.15-5.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'docker-engine-19.03.15-5.ph4')) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'docker');
}
4.4 Medium
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
6.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
0.0005 Low
EPSS
Percentile
17.5%