NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081) - Nessus

High Plugin ID: 147285

This page contains detailed information about the NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 147285
Name: NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081)
Filename: newstart_cgsl_NS-SA-2021-0081_python-pip.nasl
Vulnerability Published: 2020-09-04
This Plugin Published: 2021-03-10
Last Modification Time: 2021-03-10
Plugin Version: 1.3
Plugin Type: local
Plugin Family: NewStart CGSL Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list

Vulnerability Information

Severity: High
Vulnerability Published: 2020-09-04
Patch Published: 2021-03-09
CVE [?]: CVE-2019-20916
CPE [?]: N/A

Synopsis

The remote machine is affected by a vulnerability.

Description

The remote NewStart CGSL host, running version MAIN 6.02, has python-pip packages installed that are affected by a vulnerability:

- The pip package before 19.2 for Python allows Directory Traversal when a URL is given in an install command, because a Content-Disposition header can have ../ in a filename, as demonstrated by overwriting the /root/.ssh/authorized_keys file. This occurs in _download_http_url in _internal/download.py. (CVE-2019-20916)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the vulnerable CGSL python-pip packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits (PoCs) are available

Here's the list of publicly known exploits and PoCs for verifying the NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081) vulnerability:

GitHub: https://github.com/noseka1/deep-dive-into-clair
[CVE-2019-20916]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS Score Source [?]: CVE-2019-20916
CVSS V2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C

CVSS Base Score:	5.0 (Medium)
Impact Subscore:	2.9
Exploitability Subscore:	10.0
CVSS Temporal Score:	3.7 (Low)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	3.7 (Low)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	3.6
Exploitability Subscore:	3.9
CVSS Temporal Score:	6.5 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.5 (Medium)

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Plugin Source

##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2021-0081. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(147285);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/10");

  script_cve_id("CVE-2019-20916");

  script_name(english:"NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 6.02, has python-pip packages installed that are affected by a
vulnerability:

  - The pip package before 19.2 for Python allows Directory Traversal when a URL is given in an install
    command, because a Content-Disposition header can have ../ in a filename, as demonstrated by overwriting
    the /root/.ssh/authorized_keys file. This occurs in _download_http_url in _internal/download.py.
    (CVE-2019-20916)

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:"http://security.gd-linux.com/notice/NS-SA-2021-0081");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL python-pip packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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-2019-20916");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/09/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL 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/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  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);

release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');

if (release !~ "CGSL MAIN 6.02")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.02');

if (!get_kb_item('Host/ZTE-CGSL/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'NewStart Carrier Grade Server Linux', cpu);

flag = 0;

pkgs = {
  'CGSL MAIN 6.02': [
    'platform-python-pip-9.0.3-18.el8',
    'python-pip-doc-9.0.3-18.el8',
    'python3-pip-9.0.3-18.el8',
    'python3-pip-wheel-9.0.3-18.el8'
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:'ZTE ' + release, reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'python-pip');
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/newstart_cgsl_NS-SA-2021-0081_python-pip.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\newstart_cgsl_NS-SA-2021-0081_python-pip.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/newstart_cgsl_NS-SA-2021-0081_python-pip.nasl

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How to Run

Here is how to run the NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select NewStart CGSL Local Security Checks plugin family.
On the right side table select NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081) plugin ID 147285.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl newstart_cgsl_NS-SA-2021-0081_python-pip.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a newstart_cgsl_NS-SA-2021-0081_python-pip.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - newstart_cgsl_NS-SA-2021-0081_python-pip.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state newstart_cgsl_NS-SA-2021-0081_python-pip.nasl -t <IP/HOST>

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References

See also:

Similar and related Nessus plugins:

147286 - NewStart CGSL MAIN 6.02 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0081)
143611 - SUSE SLED15 / SLES15 Security Update : python (SUSE-SU-2020:3597-1)
143646 - SUSE SLES12 Security Update : python36 (SUSE-SU-2020:3563-1)
143677 - SUSE SLES12 Security Update : python3 (SUSE-SU-2020:3596-1)
143701 - SUSE SLED15 / SLES15 Security Update : python3 (SUSE-SU-2020:3593-1)
144033 - openSUSE Security Update : python (openSUSE-2020-2211)
144121 - SUSE SLES12 Security Update : python (SUSE-SU-2020:3765-1)
144443 - SUSE SLES12 Security Update : python36 (SUSE-SU-2020:3865-1)
145917 - CentOS 8 : python-pip (CESA-2020:4432)
146020 - CentOS 8 : python27:2.7 (CESA-2020:4654)
146322 - SUSE SLES12 Security Update : python3 (SUSE-SU-2021:0344-1)
146367 - SUSE SLED15 / SLES15 Security Update : python (SUSE-SU-2021:0355-1)
146395 - SUSE SLES12 Security Update : python36 (SUSE-SU-2021:0428-1)
146463 - SUSE SLES12 Security Update : python (SUSE-SU-2021:0432-1)
146518 - openSUSE Security Update : python (openSUSE-2021-270)
146729 - SUSE SLED15 / SLES15 Security Update : python3 (SUSE-SU-2021:0529-1)
146851 - openSUSE Security Update : python3 (openSUSE-2021-331)
147070 - EulerOS Virtualization for ARM 64 3.0.6.0 : python-pip (EulerOS-SA-2021-1572)
147494 - EulerOS Virtualization 2.9.1 : python-pip (EulerOS-SA-2021-1624)
147669 - EulerOS Virtualization 2.9.0 : python-pip (EulerOS-SA-2021-1648)
149875 - Amazon Linux 2 : python-pip (ALAS-2021-1639)
157499 - AlmaLinux 8 : python-pip (ALSA-2020:4432)
158767 - Oracle Linux 7 : python-pip (ELSA-2022-9204)
160327 - SUSE SLED15 / SLES15 Security Update : python-pip (SUSE-SU-2022:1454-1)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file newstart_cgsl_NS-SA-2021-0081_python-pip.nasl version 1.3. For more plugins, visit the Nessus Plugin Library.

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NewStart CGSL MAIN 6.02 : python-pip Vulnerability (NS-SA-2021-0081) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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