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openvasCopyright (C) 2017 Greenbone AGOPENVAS:1361412562310810904
HistoryApr 05, 2017 - 12:00 a.m.

Avast Internet Security DoubleAgent Attack Local Code Injection Vulnerability

2017-04-0500:00:00
Copyright (C) 2017 Greenbone AG
plugins.openvas.org
3

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

Avast Internet Security is prone to local code injection vulnerability.

# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:avast:avast_internet_security";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.810904");
  script_version("2023-07-14T16:09:27+0000");
  script_cve_id("CVE-2017-5567");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2023-07-14 16:09:27 +0000 (Fri, 14 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
  script_tag(name:"creation_date", value:"2017-04-05 10:13:58 +0530 (Wed, 05 Apr 2017)");
  script_name("Avast Internet Security DoubleAgent Attack Local Code Injection Vulnerability");

  script_tag(name:"summary", value:"Avast Internet Security is prone to local code injection vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The flaw exists due to the product do not
  use the Protected Processes feature, and therefore an attacker can enter an
  arbitrary Application Verifier Provider DLL under Image File Execution Options
  in the registry. The self-protection mechanism is intended to block all local
  processes (regardless of privileges) from modifying Image File Execution Options
  for this product. This mechanism can be bypassed by an attacker who
  temporarily renames Image File Execution Options during the attack.");

  script_tag(name:"impact", value:"Successful exploitation will allow local
  attacker to execute arbitrary code in the context of the system running the
  affected application. This can also result in the attacker gaining complete
  control of the affected application.");

  script_tag(name:"affected", value:"Avast Internet Security versions prior to 17.0");

  script_tag(name:"solution", value:"Upgrade to Avast Internet Security version
  17.0 or later.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"registry");

  script_xref(name:"URL", value:"https://forum.avast.com/index.php?topic=199290.0");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/97017");
  script_xref(name:"URL", value:"http://feeds.security-database.com/~r/Last100Alerts/~3/M6mwzAVFo-U/detail.php");
  script_xref(name:"URL", value:"https://www.engadget.com/2017/03/21/doubleagent-attack-anti-virus-hijack-your-pc");
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("General");
  script_dependencies("gb_avast_internet_security_detect.nasl");
  script_mandatory_keys("Avast/Internet-Security/Win/Ver");
  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if(!avastVer = get_app_version(cpe:CPE)){
  exit(0);
}

if(version_is_less(version:avastVer, test_version:"17.0"))
{
  report = report_fixed_ver(installed_version:avastVer, fixed_version:"17.0");
  security_message(data:report);
  exit(0);
}

exit(99);

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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