Amazon Linux AMI : python27 / python35,python36 (ALAS-2020-1342)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2020-1342.
#

include('compat.inc');

if (description)
{
  script_id(133653);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/27");

  script_cve_id("CVE-2019-16935");
  script_xref(name:"ALAS", value:"2020-1342");

  script_name(english:"Amazon Linux AMI : python27 / python35,python36 (ALAS-2020-1342)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux AMI host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The documentation XML-RPC server in Python through 2.7.16, 3.x through
3.6.9, and 3.7.x through 3.7.4 has XSS via the server_title field.
This occurs in Lib/DocXMLRPCServer.py in Python 2.x, and in
Lib/xmlrpc/server.py in Python 3.x. If set_server_title is called with
untrusted input, arbitrary JavaScript can be delivered to clients that
visit the http URL for this server. (CVE-2019-16935)");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/ALAS-2020-1342.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update python27' to update your system.

Run 'yum update python35' to update your system.

Run 'yum update python36' to update your system.");
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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-2019-16935");

  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:"2019/09/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python27");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python27-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python27-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python27-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python27-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python27-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python35");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python35-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python35-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python35-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python35-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python35-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python36");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python36-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python36-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python36-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python36-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python36-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python36-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Amazon Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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);

release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", reference:"python27-2.7.16-1.131.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python27-debuginfo-2.7.16-1.131.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python27-devel-2.7.16-1.131.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python27-libs-2.7.16-1.131.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python27-test-2.7.16-1.131.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python27-tools-2.7.16-1.131.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python35-3.5.7-1.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python35-debuginfo-3.5.7-1.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python35-devel-3.5.7-1.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python35-libs-3.5.7-1.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python35-test-3.5.7-1.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python35-tools-3.5.7-1.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python36-3.6.10-1.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python36-debug-3.6.10-1.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python36-debuginfo-3.6.10-1.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python36-devel-3.6.10-1.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python36-libs-3.6.10-1.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python36-test-3.6.10-1.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"python36-tools-3.6.10-1.16.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "python27 / python27-debuginfo / python27-devel / python27-libs / etc");
}