Debian DLA-1205-1 : simplesamlphp 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-1205-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(105193);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2017-12867", "CVE-2017-12868", "CVE-2017-12869", "CVE-2017-12872", "CVE-2017-12873", "CVE-2017-12874");

  script_name(english:"Debian DLA-1205-1 : simplesamlphp security update");
  script_summary(english:"Checks dpkg output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The simplesamlphp package in wheezy is vulnerable to multiple attacks
on authentication-related code, leading to unauthorized access and
information disclosure.

CVE-2017-12867

The SimpleSAML_Auth_TimeLimitedToken class allows attackers with
access to a secret token to extend its validity period by manipulating
the prepended time offset.

CVE-2017-12869

The multiauth module allows remote attackers to bypass authentication
context restrictions and use an authentication source defined in
config/authsources.php via vectors related to improper validation of
user input.

CVE-2017-12872 / CVE-2017-12868

The (1) Htpasswd authentication source in the authcrypt module and (2)
SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow
remote iattackers to conduct timing side-channel attacks by leveraging
use of the standard comparison operator to compare secret material
against user input.

CVE-2017-12868 was a about an improper fix of CVE-2017-12872
in the initial patch released by upstream. We have used the
correct patch.

CVE-2017-12873

SimpleSAMLphp might allow attackers to obtain sensitive information,
gain unauthorized access, or have unspecified other impacts by
leveraging incorrect persistent NameID generation when an Identity
Provider (IdP) is misconfigured.

CVE-2017-12874

The InfoCard module for SimpleSAMLphp allows attackers to spoof XML
messages by leveraging an incorrect check of return values in
signature validation utilities.

For Debian 7 'Wheezy', these problems have been fixed in version
1.9.2-1+deb7u1.

We recommend that you upgrade your simplesamlphp 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/2017/12/msg00007.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/simplesamlphp"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected simplesamlphp package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:simplesamlphp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/12/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 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:"7.0", prefix:"simplesamlphp", reference:"1.9.2-1+deb7u1")) flag++;

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