Vulnerabilities > CVE-2005-3961 - File Corruption vulnerability in Webcalendar 1.0.1

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

include("compat.inc");

if (description) {
  script_id(20250);
  script_version("1.21");

  script_cve_id("CVE-2005-3949", "CVE-2005-3961", "CVE-2005-3982", "CVE-2005-3982");
  script_bugtraq_id(15606, 15608, 15662, 15673);

  script_name(english:"WebCalendar < 1.0.2 Multiple Vulnerabilities");
  script_summary(english:"Checks for multiple vulnerabilities in WebCalendar < 1.0.2");
 
 script_set_attribute(attribute:"synopsis", value:
"The remote web server has a PHP application that is affected by
multiple vulnerabilities." );
 script_set_attribute(attribute:"description", value:
"The remote version of WebCalendar does not validate input to the 'id'
and 'format' parameters of the 'export_handler.php' script before
using it to overwrite files on the remote host, subject to the
privileges of the web server user id. 

In addition, the 'activity_log.php', 'admin_handler.php',
'edit_report_handler.php', 'edit_template.php' and
'export_handler.php' scripts are prone to SQL injection attacks and
the 'layers_toggle.php' script is prone to HTTP response splitting
attacks." );
 script_set_attribute(attribute:"see_also", value:"http://www.ush.it/2005/11/28/webcalendar-multiple-vulnerabilities/" );
 script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/418286/30/0/threaded" );
 script_set_attribute(attribute:"see_also", value:"https://sourceforge.net/tracker/index.php?func=detail&aid=1369439&group_id=3870&atid=303870" );
 script_set_attribute(attribute:"solution", value:
"Upgrade to WebCalendar 1.0.2 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: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:"plugin_publication_date", value: "2005/12/02");
 script_set_attribute(attribute:"vuln_publication_date", value: "2005/11/28");
 script_cvs_date("Date: 2018/11/15 20:50:19");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_end_attributes();


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

  script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");

  script_dependencies("webcalendar_detect.nasl");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);
  script_require_keys("www/PHP");
  exit(0);
}


include("global_settings.inc");
include("misc_func.inc");
include("http.inc");


port = get_http_port(default:80);
if (!can_host_php(port:port)) exit(0);


# Test an install.
#
# nb: this requires the application be configured to allow public access.
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];

  # Make sure one of the affected scripts exists.
  w = http_send_recv3(method:"GET",item:string(dir, "/export_handler.php"), port:port);
  if (isnull(w)) exit(0);
  res = w[2];

  # If it does...
  #
  # nb: this appears in the case of an export error.
  if ('<span style="font-weight:bold;"' >< res) {
    # Pass a non-integer value for year; in a patched / fixed version
    # we'll get an error; otherwise, we'll get a calendar export.
    postdata = string(
      "format=ical&",
      "fromyear=nessus"
    );
    w = http_send_recv3(method:"POST", port: port,
      item: dir+"/export_handler.php?plugin="+SCRIPT_NAME,
      content_type: "application/x-www-form-urlencoded",
      data: postdata);
    if (isnull(w)) exit(0);
    res = strcat(w[0], w[1], '\r\n', w[2]);

    # There's a problem if we're able to export the calendar.
    if ("Content-Type: text/calendar" >< res) {
      security_hole(port);
      set_kb_item(name: 'www/'+port+'/SQLInjection', value: TRUE);
    }
  }
}

#%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-1002. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(22544);
  script_version("1.18");
  script_cvs_date("Date: 2019/08/02 13:32:19");

  script_cve_id("CVE-2005-3949", "CVE-2005-3961", "CVE-2005-3982");
  script_bugtraq_id(15606, 15608, 15662, 15673);
  script_xref(name:"DSA", value:"1002");

  script_name(english:"Debian DSA-1002-1 : webcalendar - 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 security related problems have been discovered in webcalendar,
a PHP based multi-user calendar. The Common Vulnerabilities and
Exposures project identifies the following vulnerabilities :

  - CVE-2005-3949
    Multiple SQL injection vulnerabilities allow remote
    attackers to execute arbitrary SQL commands.

  - CVE-2005-3961
    Missing input sanitising allows an attacker to overwrite
    local files.

  - CVE-2005-3982
    A CRLF injection vulnerability allows remote attackers
    to modify HTTP headers and conduct HTTP response
    splitting attacks."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=341208"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=342090"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2005-3949"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2005-3961"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2005-3982"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1002"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the webcalendar package.

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

For the stable distribution (sarge) these problems have been fixed in
version 0.9.45-4sarge3."
  );
  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:POC/RL:OF/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:webcalendar");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/03/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/14");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/11/28");
  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:"0.9.45-4sarge3")) 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");