SAP Sybase Adaptive Server Enterprise Information Disclosure (SAP Note 1887341)

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

include("compat.inc");

if (description)
{
  script_id(70973);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/03");

  script_cve_id("CVE-2013-6025");
  script_bugtraq_id(63193, 63549);
  script_xref(name:"CERT", value:"303900");
  script_xref(name:"IAVA", value:"2013-A-0217-S");

  script_name(english:"SAP Sybase Adaptive Server Enterprise Information Disclosure (SAP Note 1887341)");
  script_summary(english:"Checks sqlserver.exe version");

  script_set_attribute(attribute:"synopsis", value:
"The version of SAP Sybase Adaptive Server Enterprise (ASE) installed on
the remote host is affected by an information disclosure
vulnerability.");
  script_set_attribute(attribute:"description", value:
"Information in protected files on machines running SAP Sybase ASE may
be disclosed to an attacker.  This information may be used by the
attacker to further target specialized attacks on the system.");
  script_set_attribute(attribute:"see_also", value:"https://service.sap.com/sap/support/notes/1887341");
  script_set_attribute(attribute:"see_also", value:"http://www.sybase.com/detail?id=1099371");
  script_set_attribute(attribute:"solution", value:
"Apply one of the patches listed in the advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-6025");

  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:"2013/09/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/11/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sybase:adaptive_server_enterprise");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("sybase_ase_installed.nbin");
  script_require_keys("SMB/Sybase_ASE/Installed");

  exit(0);
}

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


kb = "SMB/Sybase_ASE/";
get_kb_item_or_exit(kb + "Installed");

path = get_kb_item_or_exit(kb + "Path");
ver  = get_kb_item_or_exit(kb + "Version");
ebf  = get_kb_item_or_exit(kb + "EBF");
arch = get_kb_item_or_exit(kb + "Architecture");
servername = get_kb_item(kb + "ServerName");
######################################################################
# This issue has been fixed in the following SAP Sybase ASE versions:
#
# Platform: Windows x64
#     EBF 21150: 15.7   SP100
#     EBF 20951: 15.7   ESD #4.2
#     EBF 21262: 15.5   ESD #5.3
#     EBF 21293: 15.0.3 ESD #4.3
#
# Platform: Windows x86
#     EBF 21149: 15.7   SP100
#     EBF 20950: 15.7   ESD #4.2
#     EBF 21261: 15.5   ESD #5.3
#     EBF 21286: 15.0.3 ESD #4.3
######################################################################

if (ver =~ "^15\.7([^0-9]|$)")
{
  # Choose the lowest EBF on this branch.
  ver_fix = "15.7 ESD #4.2";
  if (arch == "x64")
    ebf_fix = 20951;
  else
    ebf_fix = 21150;
}
else if (ver =~ "^15\.5([^0-9]|$)")
{
  # Choose the lowest EBF on this branch.
  ver_fix = "15.5 ESD #5.3";
  if (arch == "x64")
    ebf_fix = 21262;
  else
    ebf_fix = 21261;
}
else
{
  # Choose the lowest EBF on this branch.
  ver_fix = "15.0.3 ESD #4.3";
  if (arch == "x64")
    ebf_fix = 21293;
  else
    ebf_fix = 21286;
}

if (isnull(ebf_fix) || ebf >= ebf_fix)
  audit(AUDIT_INST_PATH_NOT_VULN, "SAP Sybase ASE", ver, path);

report = NULL;
if (report_verbosity > 0)
{
  report =
    '\n  Path              : ' + path +
    '\n  Installed version : ' + ver +
    '\n  Fixed version     : ' + ver_fix +
    '\n';
  if(servername)
  {
    servers = split(servername, keep:FALSE);
    foreach server (servers)
    {
      server_report += server + '\n' + crap(data:' ', length:22);
    }
    report += '  Server Name       : ' + server_report + '\n';
  }
}

port = get_kb_item("SMB/transport");
if (!port) port = 445;

security_warning(port:port, extra:report);