Debian DLA-1674-1 : php5 security update

2019-02-12T00:00:00
ID DEBIAN_DLA-1674.NASL
Type nessus
Reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2019-11-02T00:00:00

Description

php-pear in php5 contains CWE-502 (Deserialization of Untrusted Data) and CWE-915 (Improperly Controlled Modification of Dynamically-Determined Object Attributes) vulnerabilities in its Archive_Tar class. When extract is called without a specific prefix path, can trigger unserialization by crafting a tar file with phar://[path_to_malicious_phar_file] as path. Object injection can be used to trigger destruct in the loaded PHP classes, all with possible remote code execution that can result in files being deleted or possibly modified.

For Debian 8

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1674-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(122101);
  script_version("1.2");
  script_cvs_date("Date: 2019/04/02 21:54:16");

  script_cve_id("CVE-2018-1000888");

  script_name(english:"Debian DLA-1674-1 : 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:
"php-pear in php5 contains CWE-502 (Deserialization of Untrusted Data)
and CWE-915 (Improperly Controlled Modification of
Dynamically-Determined Object Attributes) vulnerabilities in its
Archive_Tar class. When extract is called without a specific prefix
path, can trigger unserialization by crafting a tar file with
`phar://[path_to_malicious_phar_file]` as path. Object injection can
be used to trigger destruct in the loaded PHP classes, all with
possible remote code execution that can result in files being deleted
or possibly modified.

For Debian 8 'Jessie', this problem has been fixed in version
5.6.39+dfsg-0+deb8u2.

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/2019/02/msg00020.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:N/C:P/I:P/A:P");
  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:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/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:"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:"2018/12/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 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+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libapache2-mod-php5filter", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libphp5-embed", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php-pear", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-cgi", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-cli", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-common", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-curl", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-dbg", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-dev", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-enchant", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-fpm", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-gd", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-gmp", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-imap", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-interbase", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-intl", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-ldap", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-mcrypt", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-mysql", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-mysqlnd", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-odbc", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-pgsql", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-phpdbg", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-pspell", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-readline", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-recode", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-snmp", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-sqlite", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-sybase", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-tidy", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-xmlrpc", reference:"5.6.39+dfsg-0+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"php5-xsl", reference:"5.6.39+dfsg-0+deb8u2")) 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");