CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
39.3%
The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6473-2 advisory.
USN-6473-1 fixed vulnerabilities in urllib3. This update provides the corresponding updates for the urllib3 module bundled into pip.
Original advisory details:
It was discovered that urllib3 didn't strip HTTP Authorization header
on cross-origin redirects. A remote attacker could possibly use this
issue to obtain sensitive information. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-25091)
It was discovered that urllib3 didn't strip HTTP Cookie header on
cross-origin redirects. A remote attacker could possibly use this
issue to obtain sensitive information. (CVE-2023-43804)
It was discovered that urllib3 didn't strip HTTP body on status code
303 redirects under certain circumstances. A remote attacker could
possibly use this issue to obtain sensitive information. (CVE-2023-45803)
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 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-6473-2. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(185739);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/18");
script_cve_id("CVE-2018-25091", "CVE-2023-43804", "CVE-2023-45803");
script_xref(name:"USN", value:"6473-2");
script_name(english:"Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 : pip vulnerabilities (USN-6473-2)");
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 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 host has packages installed that are
affected by multiple vulnerabilities as referenced in the USN-6473-2 advisory.
USN-6473-1 fixed vulnerabilities in urllib3. This update provides the corresponding updates for the
urllib3 module bundled into pip.
Original advisory details:
It was discovered that urllib3 didn't strip HTTP Authorization header
on cross-origin redirects. A remote attacker could possibly use this
issue to obtain sensitive information. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-25091)
It was discovered that urllib3 didn't strip HTTP Cookie header on
cross-origin redirects. A remote attacker could possibly use this
issue to obtain sensitive information. (CVE-2023-43804)
It was discovered that urllib3 didn't strip HTTP body on status code
303 redirects under certain circumstances. A remote attacker could
possibly use this issue to obtain sensitive information. (CVE-2023-45803)
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-6473-2");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-43804");
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:"2023/10/02");
script_set_attribute(attribute:"patch_publication_date", value:"2023/11/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:esm");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:esm");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.04");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.10");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python-pip");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python-pip-whl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-pip");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-pip-whl");
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) 2023-2024 Canonical, Inc. / NASL script (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "ubuntu_pro_sub_detect.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 || '22.04' >< os_release || '23.04' >< os_release || '23.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04 / 22.04 / 23.04 / 23.10', '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 ubuntu_pro_detected = get_kb_item('Host/Ubuntu/Pro/Services/esm-apps');
ubuntu_pro_detected = !empty_or_null(ubuntu_pro_detected);
var pro_caveat_needed = FALSE;
var pkgs = [
{'osver': '16.04', 'pkgname': 'python-pip', 'pkgver': '8.1.1-2ubuntu0.6+esm6', 'ubuntu_pro': TRUE},
{'osver': '16.04', 'pkgname': 'python-pip-whl', 'pkgver': '8.1.1-2ubuntu0.6+esm6', 'ubuntu_pro': TRUE},
{'osver': '16.04', 'pkgname': 'python3-pip', 'pkgver': '8.1.1-2ubuntu0.6+esm6', 'ubuntu_pro': TRUE},
{'osver': '18.04', 'pkgname': 'python-pip', 'pkgver': '9.0.1-2.3~ubuntu1.18.04.8+esm2', 'ubuntu_pro': TRUE},
{'osver': '18.04', 'pkgname': 'python-pip-whl', 'pkgver': '9.0.1-2.3~ubuntu1.18.04.8+esm2', 'ubuntu_pro': TRUE},
{'osver': '18.04', 'pkgname': 'python3-pip', 'pkgver': '9.0.1-2.3~ubuntu1.18.04.8+esm2', 'ubuntu_pro': TRUE},
{'osver': '20.04', 'pkgname': 'python-pip-whl', 'pkgver': '20.0.2-5ubuntu1.10', 'ubuntu_pro': FALSE},
{'osver': '20.04', 'pkgname': 'python3-pip', 'pkgver': '20.0.2-5ubuntu1.10', 'ubuntu_pro': FALSE},
{'osver': '22.04', 'pkgname': 'python3-pip', 'pkgver': '22.0.2+dfsg-1ubuntu0.4', 'ubuntu_pro': FALSE},
{'osver': '22.04', 'pkgname': 'python3-pip-whl', 'pkgver': '22.0.2+dfsg-1ubuntu0.4', 'ubuntu_pro': FALSE},
{'osver': '23.04', 'pkgname': 'python3-pip', 'pkgver': '23.0.1+dfsg-1ubuntu0.2', 'ubuntu_pro': FALSE},
{'osver': '23.04', 'pkgname': 'python3-pip-whl', 'pkgver': '23.0.1+dfsg-1ubuntu0.2', 'ubuntu_pro': FALSE},
{'osver': '23.10', 'pkgname': 'python3-pip', 'pkgver': '23.2+dfsg-1ubuntu0.1', 'ubuntu_pro': FALSE},
{'osver': '23.10', 'pkgname': 'python3-pip-whl', 'pkgver': '23.2+dfsg-1ubuntu0.1', 'ubuntu_pro': FALSE}
];
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'];
var pro_required = NULL;
if (!empty_or_null(package_array['ubuntu_pro'])) pro_required = package_array['ubuntu_pro'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) {
flag++;
if (!ubuntu_pro_detected && !pro_caveat_needed) pro_caveat_needed = pro_required;
}
}
}
if (flag)
{
var extra = '';
if (pro_caveat_needed) {
extra += 'NOTE: This vulnerability check contains fixes that apply to packages only \n';
extra += 'available in Ubuntu ESM repositories. Access to these package security updates \n';
extra += 'require an Ubuntu Pro subscription.\n\n';
}
extra += ubuntu_report_get();
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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, 'python-pip / python-pip-whl / python3-pip / python3-pip-whl');
}
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
39.3%