The Ubuntu 16.04/18.04/20.04 LTS host is vulnerable to Ark symbolic link handling issue (USN-4482-1)
Reporter | Title | Published | Views | Family All 42 |
---|---|---|---|---|
![]() | [SECURITY] [DSA 4759-1] ark security update | 4 Sep 202019:14 | – | debian |
![]() | [SECURITY] [DSA 4759-1] ark security update | 4 Sep 202019:14 | – | debian |
![]() | [SECURITY] [DLA 3015-1] ark security update | 20 May 202212:06 | – | debian |
![]() | CVE-2020-24654 | 2 Sep 202017:15 | – | debiancve |
![]() | GLSA-202010-06 : Ark: Arbitrary code execution | 21 Oct 202000:00 | – | nessus |
![]() | openSUSE Security Update : ark (openSUSE-2020-1310) | 2 Sep 202000:00 | – | nessus |
![]() | Debian DSA-4759-1 : ark - security update | 8 Sep 202000:00 | – | nessus |
![]() | RHEL 7 : ark (Unpatched Vulnerability) | 3 Jun 202400:00 | – | nessus |
![]() | GLSA-202101-06 : Ark: Symlink vulnerability | 12 Jan 202100:00 | – | nessus |
![]() | Fedora 32 : ark (2020-c2f8a1e8a5) | 8 Sep 202000:00 | – | nessus |
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4482-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include('compat.inc');
if (description)
{
script_id(140180);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");
script_cve_id("CVE-2020-24654");
script_xref(name:"USN", value:"4482-1");
script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Ark vulnerability (USN-4482-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has a package installed that is affected by a vulnerability as
referenced in the USN-4482-1 advisory.
Fabian Vogt discovered that Ark incorrectly handled symbolic links in tar archive files. An attacker could
use this to construct a malicious tar archive that, when opened, would create files outside the extraction
directory.
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
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://ubuntu.com/security/notices/USN-4482-1");
script_set_attribute(attribute:"solution", value:
"Update the affected ark package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
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:N/UI:R/S:U/C:N/I:L/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-24654");
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:"2020/09/02");
script_set_attribute(attribute:"patch_publication_date", value:"2020/09/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/09/02");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ark");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2020-2024 Canonical, Inc. / NASL script (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var pkgs = [
{'osver': '16.04', 'pkgname': 'ark', 'pkgver': '4:15.12.3-0ubuntu1.2'},
{'osver': '18.04', 'pkgname': 'ark', 'pkgver': '4:17.12.3-0ubuntu1.2'},
{'osver': '20.04', 'pkgname': 'ark', 'pkgver': '4:19.12.3-0ubuntu1.2'}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
var extra = '';
extra += ubuntu_report_get();
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'ark');
}
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