Vulnerabilities > CVE-2006-2247 - Unspecified vulnerability in Webcalendar 1.0.1/1.0.2/1.0.3

#%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-1056. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(22598);
  script_version("1.12");
  script_cvs_date("Date: 2019/08/02 13:32:19");

  script_cve_id("CVE-2006-2247");
  script_xref(name:"DSA", value:"1056");

  script_name(english:"Debian DSA-1056-1 : webcalendar - verbose error message");
  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:
"David Maciejak noticed that webcalendar, a PHP-based multi-user
calendar, returns different error messages on login attempts for an
invalid password and a non-existing user, allowing remote attackers to
gain information about valid usernames."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=366927"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1056"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the webcalendar package.

The old stable distribution (woody) does not contain a webcalendar
package.

For the stable distribution (sarge) this problem has been fixed in
version 0.9.45-4sarge4."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:webcalendar");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/05/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/14");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/05/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 Tenable Network Security, Inc.");
  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:"3.1", prefix:"webcalendar", reference:"0.9.45-4sarge4")) 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(21566);
 script_version("1.14");

 script_cve_id("CVE-2006-2247");
 script_bugtraq_id(17853);

 script_name(english:"WebCalendar Login Error Message User Account Enumeration");
 
 script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by an information disclosure issue." );
 script_set_attribute(attribute:"description", value:
"The version of WebCalendar on the remote host is prone to a user
account enumeration weakness in that in response to login attempts it
returns different error messages depending on whether the user exists
or the password is invalid." );
 script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/433053/30/0/threaded" );
 script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/436263/30/0/threaded" );
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2fe61fc9" );
 script_set_attribute(attribute:"solution", value:
"Upgrade to WebCalendar 1.0.4 or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
 script_set_cvss_temporal_vector("CVSS2#E:U/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:"plugin_publication_date", value: "2006/05/16");
 script_set_attribute(attribute:"vuln_publication_date", value: "2006/05/04");
 script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_end_attributes();

 
 script_summary(english:"Checks for WebCalendar User Account Enumeration Disclosure weakness");
 script_category(ACT_GATHER_INFO);
 script_copyright(english:"This script is Copyright (C) 2006-2020 Tenable Network Security, Inc.");
 script_family(english:"CGI abuses");
 script_dependencies("webcalendar_detect.nasl");
 script_exclude_keys("Settings/disable_cgi_scanning");
 script_require_ports("Services/www", 80);
 script_require_keys("www/webcalendar");
 exit(0);
}

#code

include("http_func.inc");
include("http_keepalive.inc");

port = get_http_port(default:80, embedded:TRUE);
if (!get_port_state(port)) exit(0);
if (!can_host_php(port:port)) exit(0);


# Test an install.
install = get_kb_item(string("www/", port, "/webcalendar"));
if (isnull(install)) exit(0);
matches = eregmatch(string:install, pattern:"^(.+) under (/.*)$");
if (!isnull(matches)) {
  dir = matches[2];
  url = string(dir, "/login.php");

  req = http_get(item:url, port:port);
  res = http_keepalive_send_recv(port:port, data:req, bodyonly:FALSE);
  if (res == NULL) exit(0);

  if ("webcalendar_session=deleted; expires" >< res && '<input name="login" id="user"' >< res)
  {
    postdata=string(
	  "login=nessus", unixtime(), "&",
	  "password=nessus"
    );
    req = string(
   "POST ", url, " HTTP/1.1\r\n",
	 "Host: ", get_host_name(), "\r\n",
	 "Content-Type: application/x-www-form-urlencoded\r\n",
	 "Content-Length: ", strlen(postdata), "\r\n",
	 "\r\n",
	 postdata
    );

    #display("req='", req, "'.\n");
    res = http_keepalive_send_recv(port:port, data:req, bodyonly:TRUE);
    #display("res='", res, "'.\n");
    if (res == NULL) exit(0);

    if ("Invalid login: no such user" >< res) {
	security_warning(port);
    }
  }
}