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nessusThis script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.CISCO-SA-PACKETTRACER-DLL-INJ-QV8MK5JX.NASL
HistoryAug 12, 2021 - 12:00 a.m.

Cisco Packet Tracer for Windows DLL Injection (cisco-sa-packettracer-dll-inj-Qv8Mk5Jx)

2021-08-1200:00:00
This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
15

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

7.3 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

5.1%

According to its self-reported version, Cisco Packet Tracer for Windows is affected by a DLL Injection vulnerability.
An authenticated, local attacker could exploit this, by inserting a configuration file in a specific path on the system, to cause a malicious DLL file to be loaded. Successful exploitation could lead to arbitrary code execution.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

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

include('deprecated_nasl_level.inc');

include('compat.inc');

if (description)
{
  script_id(152529);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/08/17");

  script_cve_id("CVE-2021-1593");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvx88162");
  script_xref(name:"CISCO-SA", value:"cisco-sa-packettracer-dll-inj-Qv8Mk5Jx");
  script_xref(name:"IAVA", value:"2021-A-0364");

  script_name(english:"Cisco Packet Tracer for Windows DLL Injection (cisco-sa-packettracer-dll-inj-Qv8Mk5Jx)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, Cisco Packet Tracer for Windows is affected by a DLL Injection vulnerability.
An authenticated, local attacker could exploit this, by inserting a configuration file in a specific path on the system, 
to cause a malicious DLL file to be loaded. Successful exploitation could lead to arbitrary code execution.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version 
number.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-packettracer-dll-inj-Qv8Mk5Jx
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?03b24375");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx88162");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Cisco Packet Tracer version 8.0.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/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:L/AC:L/PR:L/UI:R/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-2021-1593");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(427);

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/08/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/08/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/08/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:packet_tracer");
  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) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("cisco_packet_tracer_installed_win.nbin");
  script_require_keys("installed_sw/Cisco Packet Tracer", "SMB/Registry/Enumerated");

  exit(0);
}
include('vcf.inc');

get_kb_item_or_exit('SMB/Registry/Enumerated');

var app_info = vcf::get_app_info(app:'Cisco Packet Tracer');

var constraints = [
  {'min_version': '7.3.1', 'fixed_version': '7.3.2', 'fixed_display':'8.0.1'},
  {'min_version': '8.0.0', 'fixed_version': '8.0.1'}
];

vcf::check_version_and_report(
  app_info:app_info, 
  constraints:constraints, 
  severity:SECURITY_WARNING
);
VendorProductVersionCPE
ciscopacket_tracercpe:/a:cisco:packet_tracer

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

7.3 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

5.1%

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