VanDyke Software SecureCRT < 8.7.2 Memory Corruption

2020-07-22T00:00:00
ID SECURECRT_CVE-2020-12651.NASL
Type nessus
Reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-07-22T00:00:00

Description

The version of VanDyke Software SecureCRT installed on the remote Linux host is prior to 8.7.2. It is, therefore, affected by a memory corruption vulnerability. An unauthenticated remote attacker may be able to exploit this vulnerability, via a malformed response, to corrupt memory in the terminal process and execute arbitrary code.

Note that Nessus has not tested for these issues but has instead relied only on the application

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

include('compat.inc');

if (description)
{
  script_id(138818);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/23");

  script_cve_id("CVE-2020-12651");
  script_xref(name:"IAVA", value:"2020-A-0229");

  script_name(english:"VanDyke Software SecureCRT < 8.7.2 Memory Corruption");

  script_set_attribute(attribute:"synopsis", value:
"A terminal emulation application installed on the remote Linux host is affected
by a memory corruption vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of VanDyke Software SecureCRT installed on the remote Linux host is prior to 8.7.2. It is, therefore, affected
by a memory corruption vulnerability. An unauthenticated remote attacker may be able to exploit this vulnerability, via
a malformed response, to corrupt memory in the terminal process and execute arbitrary code.

Note that Nessus has not tested for these issues but has instead relied only on
the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://www.vandyke.com/products/securecrt/history.txt");
  script_set_attribute(attribute:"see_also", value:"https://bugs.chromium.org/p/project-zero/issues/detail?id=2033");
  script_set_attribute(attribute:"solution", value:
"Update to VanDyke Software SecureCRT 8.7.2 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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-12651");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/22");

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

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

  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("securecrt_installed_nix.nbin");
  script_require_keys("installed_sw/SecureCRT");

  exit(0);
}

include('vcf.inc');

app_info = vcf::get_app_info(app:'SecureCRT');

constraints = [
  { 'fixed_version' : '8.7.2' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);