CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
32.8%
The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5077-1 advisory.
Maik Mnch and Stephen Rttger discovered that Apport incorrectly handled certain information gathering operations. A local attacker could use this issue to gain read access to arbitrary files, possibly containing sensitive information.
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for these issues 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 Ubuntu Security Notice USN-5077-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(153367);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/28");
script_cve_id("CVE-2021-3709", "CVE-2021-3710");
script_xref(name:"USN", value:"5077-1");
script_name(english:"Ubuntu 18.04 LTS / 20.04 LTS : Apport vulnerabilities (USN-5077-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as
referenced in the USN-5077-1 advisory.
Maik Mnch and Stephen Rttger discovered that Apport incorrectly handled certain information gathering
operations. A local attacker could use this issue to gain read access to arbitrary files, possibly
containing sensitive information.
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for these issues 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-5077-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3710");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_type", value:"local");
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:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apport");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apport-gtk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apport-kde");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apport-noui");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apport-retrace");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apport-valgrind");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dh-apport");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python-apport");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python-problem-report");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-apport");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-problem-report");
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) 2021-2024 Canonical, Inc. / NASL script (C) 2021-2024 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 (! ('18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 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': '18.04', 'pkgname': 'apport', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'apport-gtk', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'apport-kde', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'apport-noui', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'apport-retrace', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'apport-valgrind', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'dh-apport', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'python-apport', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'python-problem-report', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'python3-apport', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '18.04', 'pkgname': 'python3-problem-report', 'pkgver': '2.20.9-0ubuntu7.26'},
{'osver': '20.04', 'pkgname': 'apport', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'apport-gtk', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'apport-kde', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'apport-noui', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'apport-retrace', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'apport-valgrind', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'dh-apport', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'python3-apport', 'pkgver': '2.20.11-0ubuntu27.20'},
{'osver': '20.04', 'pkgname': 'python3-problem-report', 'pkgver': '2.20.11-0ubuntu27.20'}
];
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, 'apport / apport-gtk / apport-kde / apport-noui / apport-retrace / etc');
}
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
32.8%