VMware ESX / ESXi Multiple Vulnerabilities (VMSA-2011-0008) (remote check)

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

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

if (description)
{
  script_id(89677);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id(
    "CVE-2011-0426",
    "CVE-2011-1788",
    "CVE-2011-1789"
  );
  script_bugtraq_id(
    47735,
    47742,
    47744
  );
  script_xref(name:"VMSA", value:"2011-0008");

  script_name(english:"VMware ESX / ESXi Multiple Vulnerabilities (VMSA-2011-0008) (remote check)");
  script_summary(english:"Checks the ESX / ESXi version and build number.");

  script_set_attribute(attribute:"synopsis", value:
"The remote VMware ESX / ESXi host is missing a security-related patch.");
  script_set_attribute(attribute:"description", value:
"The remote VMware ESX / ESXi host is missing a security-related patch.
It is, therefore, affected by multiple vulnerabilities :

  - A directory traversal vulnerability exists that allows a
    remote attacker to read arbitrary files. (CVE-2011-0426)

  - An information disclosure vulnerability exists due to
    insecure storage of SOAP sesion IDs in a log file. A
    local attacker can exploit this to disclose
    administrative user IDs. (CVE-2011-1788)

  - A digital signature verification weakness exists in the
    self-extracting installer in the vSphere Client
    Installer package. A remote attacker can exploit this to
    spoof the software distribution via a Trojan horse
    installer. (CVE-2011-1789)");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2011-0008");
  script_set_attribute(attribute:"see_also", value:"http://lists.vmware.com/pipermail/security-announce/2011/000137.html");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory that
pertains to ESX version 4.0 or ESXi version 4.0.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esx");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/05/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/05/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 Tenable Network Security, Inc.");
  script_family(english:"Misc.");

  script_dependencies("vmware_vsphere_detect.nbin");
  script_require_keys("Host/VMware/version", "Host/VMware/release");
  script_require_ports("Host/VMware/vsphere");

  exit(0);
}

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

ver = get_kb_item_or_exit("Host/VMware/version");
rel = get_kb_item_or_exit("Host/VMware/release");
port = get_kb_item_or_exit("Host/VMware/vsphere");
esx = '';

if ("ESX" >!< rel)
  audit(AUDIT_OS_NOT, "VMware ESX/ESXi");

extract = eregmatch(pattern:"^(ESXi?) (\d\.\d).*$", string:ver);
if (isnull(extract))
  audit(AUDIT_UNKNOWN_APP_VER, "VMware ESX/ESXi");
else
{
  esx = extract[1];
  ver = extract[2];
}

# fixed build numbers are the same for ESX and ESXi
fixes = make_array(
          "4.0", "360236"
        );

fix = FALSE;
fix = fixes[ver];

# get the build before checking the fix for the most complete audit trail
extract = eregmatch(pattern:'^VMware ESXi?.* build-([0-9]+)$', string:rel);
if (isnull(extract))
  audit(AUDIT_UNKNOWN_BUILD, "VMware " + esx, ver);

build = int(extract[1]);

# if there is no fix in the array, fix is FALSE
if (!fix)
  audit(AUDIT_INST_VER_NOT_VULN, "VMware " + esx, ver, build);

if (build < fix)
{

  report = '\n  Version         : ' + esx + " " + ver +
           '\n  Installed build : ' + build +
           '\n  Fixed build     : ' + fix +
           '\n';

  security_report_v4(port:port, extra:report, severity:SECURITY_WARNING);
  exit(0);
}
else
  audit(AUDIT_INST_VER_NOT_VULN, "VMware " + esx, ver, build);