Debian DLA-301-1 : python-django security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-301-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(85656);
  script_version("2.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2015-5963", "CVE-2015-5964");

  script_name(english:"Debian DLA-301-1 : python-django security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"denial of service possibility in logout() view by filling session
store

Previously, a session could be created when anonymously accessing the
django.contrib.auth.views.logout view (provided it wasn't decorated
with django.contrib.auth.decorators.login_required as done in the
admin). This could allow an attacker to easily create many new session
records by sending repeated requests, potentially filling up the
session store or causing other users' session records to be evicted.

The django.contrib.sessions.middleware.SessionMiddleware has been
modified to no longer create empty session records.

This portion of the fix has been assigned CVE-2015-5963.

Additionally, the contrib.sessions.backends.base.SessionBase.flush()
and cache_db.SessionStore.flush() methods have been modified to avoid
creating a new empty session. Maintainers of third-party session
backends should check if the same vulnerability is present in their
backend and correct it if so.

This portion of the fix has been assigned CVE-2015-5964.

We recommend that you upgrade your python-django packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2015/08/msg00016.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/python-django"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected python-django, and python-django-doc packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-django");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-django-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/08/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"python-django", reference:"1.2.3-3+squeeze14")) flag++;
if (deb_check(release:"6.0", prefix:"python-django-doc", reference:"1.2.3-3+squeeze14")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");