Cisco TelePresence Video Communication Server GNU glibc gethostbyname Function Buffer Overflow Vulnerability (GHOST)

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

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

if (description)
{
  script_id(81408);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2015-0235");
  script_bugtraq_id(72325);
  script_xref(name:"CERT", value:"967332");
  script_xref(name:"CISCO-BUG-ID", value:"CSCus69558");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20150128-ghost");

  script_name(english:"Cisco TelePresence Video Communication Server GNU glibc gethostbyname Function Buffer Overflow Vulnerability (GHOST)");

  script_set_attribute(attribute:"synopsis", value:
"The version of Cisco TelePresence Video Communication Server installed
on the remote host is affected by a buffer overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the Cisco TelePresence
Video Communication Server is affected by a heap-based buffer overflow
vulnerability in the GNU C Library (glibc) due to improperly
validating user-supplied input to the __nss_hostname_digits_dots(),
gethostbyname(), and gethostbyname2() functions. This allows a remote
attacker to cause a buffer overflow, resulting in a denial of service
condition or the execution of arbitrary code.");
  script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/bugsearch/bug/CSCus69558");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150128-ghost
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fd2144f8");
  # https://www.qualys.com/research/security-advisories/GHOST-CVE-2015-0235.txt
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c7a6ddbd");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 8.2 / 8.5 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-0235");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Exim GHOST (glibc gethostbyname) Buffer Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/01/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/06/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/02/18");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:telepresence_video_communication_server_software");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:telepresence_video_communication_server");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:cisco:telepresence_video_communication_server");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2015-2022 Tenable Network Security, Inc.");

  script_dependencies("cisco_telepresence_video_communication_server_detect.nbin");
  script_require_keys("Cisco/TelePresence_VCS/Version");

  exit(0);
}

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

prod = "Cisco TelePresence Video Communication Server";
version = get_kb_item_or_exit("Cisco/TelePresence_VCS/Version");

if (
  version =~ "^[67]\." ||
  version =~ "^8\.[0-1]\."
)
{
  if (report_verbosity > 0)
  {
    report = '\n  Installed version : ' + version +
             '\n  Fixed versions    : 8.2 / 8.5' +
             '\n';
    security_hole(port:0, extra:report);
  }
  else security_hole(0);
}
else audit(AUDIT_INST_VER_NOT_VULN, prod, version);