Vulnerabilities > CVE-2019-18886 - Information Exposure Through Discrepancy vulnerability in Sensiolabs Symfony

047910
CVSS 5.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
LOW
Integrity impact
NONE
Availability impact
NONE
network
low complexity
sensiolabs
CWE-203
nessus

Summary

An issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality. This is related to symfony/security.

Common Weakness Enumeration (CWE)

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DLA-1999.NASL
descriptionMultiple vulnerabilities have been found in the Symfony PHP framework which could lead to a timing attack/information leak, argument injection and code execution via unserialization. For Debian 8
last seen2020-06-01
modified2020-06-02
plugin id131138
published2019-11-20
reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/131138
titleDebian DLA-1999-1 : symfony security update
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1999-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(131138);
  script_version("1.3");
  script_cvs_date("Date: 2019/12/09");

  script_cve_id("CVE-2019-18886", "CVE-2019-18887", "CVE-2019-18888");

  script_name(english:"Debian DLA-1999-1 : symfony 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:
"Multiple vulnerabilities have been found in the Symfony PHP framework
which could lead to a timing attack/information leak, argument
injection and code execution via unserialization.

For Debian 8 'Jessie', these problems have been fixed in version
2.3.21+dfsg-4+deb8u6.

We recommend that you upgrade your symfony 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/2019/11/msg00019.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/symfony"
  );
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-browser-kit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-class-loader");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-classloader");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-console");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-css-selector");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-dependency-injection");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-doctrine-bridge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-dom-crawler");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-event-dispatcher");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-eventdispatcher");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-finder");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-form");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-framework-bundle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-http-foundation");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-http-kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-locale");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-monolog-bridge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-options-resolver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-process");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-propel1-bridge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-property-access");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-proxy-manager-bridge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-routing");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-security");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-security-bundle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-serializer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-stopwatch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-swiftmailer-bridge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-templating");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-translation");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-twig-bridge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-twig-bundle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-validator");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-web-profiler-bundle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-symfony-yaml");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/20");
  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:"php-symfony-browser-kit", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-class-loader", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-classloader", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-config", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-console", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-css-selector", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-debug", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-dependency-injection", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-doctrine-bridge", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-dom-crawler", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-event-dispatcher", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-eventdispatcher", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-filesystem", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-finder", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-form", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-framework-bundle", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-http-foundation", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-http-kernel", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-intl", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-locale", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-monolog-bridge", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-options-resolver", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-process", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-propel1-bridge", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-property-access", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-proxy-manager-bridge", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-routing", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-security", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-security-bundle", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-serializer", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-stopwatch", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-swiftmailer-bridge", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-templating", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-translation", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-twig-bridge", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-twig-bundle", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-validator", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-web-profiler-bundle", reference:"2.3.21+dfsg-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"php-symfony-yaml", reference:"2.3.21+dfsg-4+deb8u6")) 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");