lighttpd < 1.4.19 Multiple Vulnerabilities

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

include("compat.inc");

if (description)
{
  script_id(106624);
  script_version("$Revision: 1.2 $");
  script_cvs_date("$Date: 2018/02/07 15:00:36 $");

  script_cve_id(
    "CVE-2008-1270",
    "CVE-2008-1111",
    "CVE-2008-0983");
  script_bugtraq_id(
    28226,
    28100,
    27943);

  script_name(english:"lighttpd < 1.4.19 Multiple Vulnerabilities");
  script_summary(english:"Checks version in Server response header.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"According to its banner, the version of lighttpd running on the remote
host is prior to 1.4.19. Therefore, it may be, affected by the following
vulnerabilities :

  - lighttpd does not properly calculate the size of a file descriptor
    array, which allows remote attackers to cause a denial of service
    (crash) via a large number of connections, which triggers an
    out-of-bounds access.

  - lighttpd sends the source code of CGI scripts instead of a 500
    error when a fork failure occurs, which might allow remote
    attackers to obtain sensitive information.

  - When userdir.path is not set, uses a default of $HOME, which
    might allow remote attackers to read arbitrary files.

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"solution", value:
"Upgrade to lighttpd version 1.4.19. Alternatively, apply the
vendor-supplied patch.");
  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:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(200, 399);

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/03/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/06");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");
  script_copyright(english:"This script is Copyright (C) 2018 Tenable Network Security, Inc.");

  script_dependencies("lighttpd_detect.nasl");
  script_require_keys("installed_sw/lighttpd", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80);
  exit(0);
}


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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

appname = "lighttpd";
get_install_count(app_name:appname, exit_if_zero:TRUE);
port = get_http_port(default:80);
app_info = vcf::get_app_info(app:appname, port:port, webapp:TRUE);

vcf::check_granularity(app_info:app_info, sig_segments:3);

constraints = [{"fixed_version":"1.4.19"}];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);