IBM WebSphere Application Server 7.0 < 7.0.0.45 / 8.0 < 8.0.0.14 / 8.5 < 8.5.5.12 / 9.0 < 9.0.0.5 Insecure File Permissions (PI79343)

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

include("compat.inc");

if (description)
{
  script_id(102201);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/12");

  script_cve_id("CVE-2017-1382");
  script_bugtraq_id(99960);

  script_name(english:"IBM WebSphere Application Server 7.0 < 7.0.0.45 / 8.0 < 8.0.0.14 / 8.5 < 8.5.5.12 / 9.0 < 9.0.0.5 Insecure File Permissions (PI79343)");
  script_summary(english:"Reads the version number from the SOAP and GIOP services.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web application server is affected by an insecure
file permissions flaw.");
  script_set_attribute(attribute:"description", value:
"The version of IBM WebSphere Application Server running on the remote
host is 7.0 prior to 7.0.0.45, 8.0 prior to 8.0.0.14, 8.5 prior to
8.5.5.12, or 9.0 prior to 9.0.0.5. It is, therefore, affected by an
insecure permissions flaw after custom startup scripts are run. The
custom startup script does not pull the umask settings in
server.xml, which may result in insecure file permissions and allows
a local attacker to gain access to certain log files.");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg22004785");
  script_set_attribute(attribute:"solution", value:
"Apply IBM WebSphere Application Server version 7.0 Fix Pack 45
(7.0.0.45) (targeted availability 2Q 2018) / 8.0 Fix Pack 14
(8.0.0.14) (targeted availability 16 October 2017) / 8.5 Fix Pack 12
(8.5.5.12) / 9.0 Fix Pack 5 (9.0.0.5) (targeted availability
29 September 2017) or later. Alternatively, apply the appropriate
Interim Fix PI79343 as recommended in the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-1382");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/04");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:websphere_application_server");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("websphere_detect.nasl");
  script_require_keys("www/WebSphere", "Settings/ParanoidReport");
  script_require_ports("Services/www", 8880, 8881, 9001);

  exit(0);
}

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

port = get_http_port(default:8880, embedded:FALSE);

version = get_kb_item_or_exit("www/WebSphere/"+port+"/version");
source = get_kb_item_or_exit("www/WebSphere/"+port+"/source");

app_name = "IBM WebSphere Application Server";

if (version =~ "((^8(\.[05](\.[05])?)?)|(7(\.0(\.0)?)?)|(9(\.0(\.0)?)?))$")
  audit(AUDIT_VER_NOT_GRANULAR, app_name, port, version);

fix = FALSE; # Fixed version for compare
min = FALSE; # Min version for branch
pck = FALSE; # Fix pack name (tacked onto fix in report)
itr = FALSE; #
if (version =~ "^7\.0\.")
{
  fix = '7.0.0.45';
  min = '7.0.0.0';
  itr = 'PI79343';
  pck = " (Fix Pack 45)";
}
else if (version =~ "^8\.0\.")
{
  fix = '8.0.0.14';
  min = '8.0.0.0';
  itr = 'PI79343';
  pck = " (Fix Pack 14)";
}
else if (version =~ "^8\.5\.")
{
  fix = '8.5.5.12';
  min = '8.5.0.0';
  itr = 'PI79343';
  pck = " (Fix Pack 12)";
}
else if (version =~ "^9\.0\.")
{
  fix = '9.0.0.5';
  min = '9.0.0.0';
  itr = 'PI79343';
  pck = " (Fix Pack 5)";
}

if (fix && min &&
    ver_compare(ver:version, fix:fix, strict:FALSE) <  0 &&
    ver_compare(ver:version, fix:min, strict:FALSE) >= 0
)
{
  report =
    '\n  Version source    : ' + source  +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix + pck +
    '\n  Interim fixes     : ' + itr +
    '\n';
  security_report_v4(port:port, severity:SECURITY_NOTE, extra:report, xss:TRUE);
}
else audit(AUDIT_LISTEN_NOT_VULN, app_name, port, version);