Debian DLA-1608-1 : php5 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-1608-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(119695);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2018-19518", "CVE-2018-19935");

  script_name(english:"Debian DLA-1608-1 : php5 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:
"Vulnerabilities have been discovered in php5, a server-side,
HTML-embedded scripting language. Note that this update includes a
change to the default behavior for IMAP connections. See below for
details.

CVE-2018-19518

An argument injection vulnerability in imap_open() may allow a remote
attacker to execute arbitrary OS commands on the IMAP server.

The fix for the CVE-2018-19518 vulnerability included this
additional note from the upstream developers :

Starting with 5.6.38, rsh/ssh logins are disabled by
default. Use imap.enable_insecure_rsh if you want to enable
them. Note that the IMAP library does not filter mailbox
names before passing them to rsh/ssh command, thus passing
untrusted data to this function with rsh/ssh enabled is
insecure.

CVE-2018-19935

A NULL pointer dereference leads to an application crash and a denial
of service via an empty string in the message argument to the
imap_mail function of ext/imap/php_imap.c.

For Debian 8 'Jessie', these problems have been fixed in version
5.6.39+dfsg-0+deb8u1.

We recommend that you upgrade your php5 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/2018/12/msg00006.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/php5"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'php imap_open Remote Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache2-mod-php5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache2-mod-php5filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libphp5-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-pear");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-interbase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-mcrypt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-mysqlnd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-phpdbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-recode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-sybase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php5-xsl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/12/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"8.0", prefix:"libapache2-mod-php5", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libapache2-mod-php5filter", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libphp5-embed", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php-pear", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-cgi", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-cli", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-common", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-curl", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-dbg", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-dev", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-enchant", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-fpm", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-gd", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-gmp", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-imap", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-interbase", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-intl", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-ldap", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-mcrypt", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-mysql", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-mysqlnd", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-odbc", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-pgsql", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-phpdbg", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-pspell", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-readline", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-recode", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-snmp", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-sqlite", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-sybase", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-tidy", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-xmlrpc", reference:"5.6.39+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"php5-xsl", reference:"5.6.39+dfsg-0+deb8u1")) 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");