Sun Java JRE Font Parsing Privilege Escalation (103024) (Unix)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(64823);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2007-4381");
  script_bugtraq_id(25340);

  script_name(english:"Sun Java JRE Font Parsing Privilege Escalation (103024) (Unix)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Unix host has an application that is affected by a privilege
escalation vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its version number, the Sun Java Runtime Environment (JRE)
installed on the remote host reportedly contains an issue in its font
parsing code that may allow an untrusted applet to gain elevated
privileges and, for example read or write local files or execute local
applications.");
  # http://web.archive.org/web/20080206203802/http://sunsolve.sun.com/search/document.do?assetkey=1-26-103024-1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6dca6a3e");
  script_set_attribute(attribute:"solution", value:
"Update to Sun Java 2 JDK and JRE 5.0 Update 10 / SDK and JRE 1.4.2_15 /
SDK or later and remove, if necessary, any affected versions.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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:"vuln_publication_date", value:"2007/08/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/08/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/02/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:jre");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2013-2022 Tenable Network Security, Inc.");

  script_dependencies("sun_java_jre_installed_unix.nasl");
  script_require_keys("Host/Java/JRE/Installed");

  exit(0);
}


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

# Check each installed JRE.
installs = get_kb_list_or_exit("Host/Java/JRE/Unmanaged/*");

info = "";
vuln = 0;
vuln2 = 0;
installed_versions = "";
granular = "";
foreach install (list_uniq(keys(installs)))
{
  ver = install - "Host/Java/JRE/Unmanaged/";
  if (ver !~ "^[0-9.]+") continue;
  installed_versions = installed_versions + " & " + ver;
  if (
    ver =~ "^1\.5\.0_0[0-9][^0-9]?" ||
    ver =~ "^1\.4\.([01]_|2_(0[0-9]|1[0-4][^0-9]?))"
  )
  {
    dirs = make_list(get_kb_list(install));
    vuln += max_index(dirs);

    foreach dir (dirs)
      info += '\n  Path              : ' + dir;

    info += '\n  Installed version : ' + ver;
    info += '\n  Fixed version     : 1.5.0_10 / 1.4.2_15\n';
  }
  else if (ver =~ "^[\d\.]+$")
  {
    dirs = make_list(get_kb_list(install));
    foreach dir (dirs)
      granular += "The Oracle Java version "+ver+" at "+dir+" is not granular enough to make a determination."+'\n';
  }
  else
  {
    dirs = make_list(get_kb_list(install));
    vuln2 += max_index(dirs);
  }

}


# Report if any were found to be vulnerable.
if (info)
{
  if (report_verbosity > 0)
  {
    if (vuln > 1) s = "s of Java are";
    else s = " of Java is";

    report =
      '\n' +
      'The following vulnerable instance'+s+' installed on the\n' +
      'remote host :\n' +
      info;
    security_hole(port:0, extra:report);
  }
  else security_hole(0);
  if (granular) exit(0, granular);
}
else
{
  if (granular) exit(0, granular);

  installed_versions = substr(installed_versions, 3);
  if (vuln2 > 1)
    exit(0, "The Java "+installed_versions+" installs on the remote host are not affected.");
  else
    exit(0, "The Java "+installed_versions+" install on the remote host is not affected.");
}