Vulnerabilities > CVE-2007-2821 - SQL Injection vulnerability in Wordpress Admin-Ajax.PHP

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

include("compat.inc");

if (description)
{
  script_id(25291);
  script_version("1.22");
  script_cvs_date("Date: 2018/11/15 20:50:19");

  script_cve_id("CVE-2007-2821");
  script_bugtraq_id(24076);
  script_xref(name:"EDB-ID", value:"3960");

  script_name(english:"WordPress check_ajax_referer() Function SQL Injection");
  script_summary(english:"Attempts to generate a SQL error.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP script that is prone to a SQL
injection attack.");
  script_set_attribute(attribute:"description", value:
"The version of WordPress on the remote host fails to properly sanitize
input to the 'cookie' parameter of the 'wp-admin/admin-ajax.php'
script before using it in the 'check_ajax_referer' function in
database queries. Regardless of PHP's 'magic_quotes_gpc' setting, an
unauthenticated, remote attacker can leverage this issue to launch SQL
injection attacks against the affected application, including the
discovery of password hashes of WordPress users.");
  script_set_attribute(attribute:"see_also", value:"http://www.waraxe.us/advisory-50.html");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2007/May/316");
  script_set_attribute(attribute:"solution", value:"Upgrade to version 2.2.1 or later.");
  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:H/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:"vuln_publication_date", value:"2007/05/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/05/23");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:wordpress:wordpress");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2007-2018 Tenable Network Security, Inc.");

  script_dependencies("wordpress_detect.nasl");
  script_require_keys("installed_sw/WordPress", "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("url_func.inc");
include("install_func.inc");

app = "WordPress";
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(port:port, qs:dir);

# Try to exploit the flaw to generate a SQL error.
exploit = "'" + SCRIPT_NAME;
# nb: this works as long as the USER_COOKIE and PASS_COOKIE are
#     derived from COOKIEHASH / site url as in wp-settings.php.
site = "http://" + get_host_name();
if (port != 80) site = site + ":" + port;
if (strlen(dir)-1 == '/') dir = substr(dir, 0, strlen(dir)-2);
site = site + dir;
cookiehash = hexstr(MD5(site));

# nb: we need to encode (twice) the single quote.
cookie = urlencode(
  str        : exploit,
  unreserved : "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_!~*()-]/"
);
cookie =
  "wordpressuser_" + cookiehash + "=" + cookie + "; " +
  "wordpresspass_" + cookiehash + "=x";

u = dir + "/wp-admin/admin-ajax.php?cookie=" + urlencode(str:cookie);
r = http_send_recv3(method: "GET", port:port, item: u, exit_on_fail: TRUE);

# There's a problem if we see an error involving our exploit for the user name.
if ("WordPress database error" >< r[2])
{
  res2 = str_replace(find:"&#039;", replace:"'", string:r[2]);
  if (" WHERE user_login = '" + exploit + "'</code>" >< res2)
  {
    set_kb_item(name: 'www/'+port+'/SQLInjection', value: TRUE);
    security_hole(port);
    exit(0);
  }
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url);

#%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-1502. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(31146);
  script_version("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:21");

  script_cve_id("CVE-2008-0193", "CVE-2008-0194");
  script_xref(name:"DSA", value:"1502");

  script_name(english:"Debian DSA-1502-1 : wordpress - 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 wordpress, a
weblog manager. The Common Vulnerabilities and Exposures project
identifies the following problems :

  - CVE-2007-3238
    Cross-site scripting (XSS) vulnerability in
    functions.php in the default theme in WordPress allows
    remote authenticated administrators to inject arbitrary
    web script or HTML via the PATH_INFO (REQUEST_URI) to
    wp-admin/themes.php.

  - CVE-2007-2821
    SQL injection vulnerability in wp-admin/admin-ajax.php
    in WordPress before 2.2 allows remote attackers to
    execute arbitrary SQL commands via the cookie parameter.

  - CVE-2008-0193
    Cross-site scripting (XSS) vulnerability in
    wp-db-backup.php in WordPress 2.0.11 and earlier allows
    remote attackers to inject arbitrary web script or HTML
    via the backup parameter in a wp-db-backup.php action to
    wp-admin/edit.php.

  - CVE-2008-0194
    Directory traversal vulnerability in wp-db-backup.php in
    WordPress 2.0.3 and earlier allows remote attackers to
    read arbitrary files, delete arbitrary files, and cause
    a denial of service via a .. (dot dot) in the backup
    parameter in a wp-db-backup.php action to
    wp-admin/edit.php.

Wordpress is not present in the oldstable distribution (sarge)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-3238"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-2821"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-0193"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2008-0194"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2008/dsa-1502"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the wordpress package.

For the stable distribution (etch), these problems have been fixed in
version 2.0.10-1etch1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cwe_id(22, 79);

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

  script_set_attribute(attribute:"patch_publication_date", value:"2008/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/02/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 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:"wordpress", reference:"2.0.10-1etch1")) 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");