Vulnerabilities > CVE-2016-7243 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Edge

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
high complexity
microsoft
CWE-119
nessus

Summary

The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, and CVE-2016-7242.

Vulnerable Configurations

Part Description Count
Application
Microsoft
1

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Msbulletin

bulletin_idMS16-129
bulletin_url
date2016-11-08T00:00:00
impactRemote Code Execution
knowledgebase_id3199057
knowledgebase_url
severityCritical
titleCumulative Security Update for Microsoft Edge

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS16-129.NASL
descriptionThe version of Microsoft Edge installed on the remote Windows host is missing Cumulative Security Update 3199057. It is, therefore, affected by multiple vulnerabilities, including remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities by convincing a user to visit a specially crafted website, resulting in the execution of arbitrary code in the context of the current user.
last seen2020-06-01
modified2020-06-02
plugin id94630
published2016-11-08
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/94630
titleMS16-129: Cumulative Security Update for Microsoft Edge (3199057)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94630);
  script_version("1.13");
  script_cvs_date("Date: 2019/11/14");

  script_cve_id(
    "CVE-2016-7195",
    "CVE-2016-7196",
    "CVE-2016-7198",
    "CVE-2016-7199",
    "CVE-2016-7200",
    "CVE-2016-7201",
    "CVE-2016-7202",
    "CVE-2016-7203",
    "CVE-2016-7204",
    "CVE-2016-7208",
    "CVE-2016-7209",
    "CVE-2016-7227",
    "CVE-2016-7239",
    "CVE-2016-7240",
    "CVE-2016-7241",
    "CVE-2016-7242",
    "CVE-2016-7243"
  );
  script_bugtraq_id(
    93968,
    94038,
    94039,
    94041,
    94042,
    94044,
    94046,
    94047,
    94049,
    94051,
    94052,
    94053,
    94055,
    94057,
    94059,
    94065
  );
  script_xref(name:"MSFT", value:"MS16-129");
  script_xref(name:"MSKB", value:"3198585");
  script_xref(name:"MSKB", value:"3198586");
  script_xref(name:"MSKB", value:"3200970");

  script_name(english:"MS16-129: Cumulative Security Update for Microsoft Edge (3199057)");
  script_summary(english:"Checks the file version of edgehtml.dll.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a web browser installed that is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Microsoft Edge installed on the remote Windows host is
missing Cumulative Security Update 3199057. It is, therefore, affected
by multiple vulnerabilities, including remote code execution
vulnerabilities. An unauthenticated, remote attacker can exploit these
vulnerabilities by convincing a user to visit a specially crafted
website, resulting in the execution of arbitrary code in the context
of the current user.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2016/ms16-129");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 10 and Windows
Server 2016.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/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:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-7243");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/11/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/11/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:edge");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("misc_func.inc");

get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');

bulletin = 'MS16-129';
kbs = make_list('3198585', '3198586', '3200970');

if (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit("SMB/Registry/Enumerated");
get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);

# Server core is not affected
if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);

if (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

share = hotfix_get_systemdrive(exit_on_fail:TRUE, as_share:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

if (
  hotfix_is_vulnerable(os:"10", sp:0, file:"edgehtml.dll", version:"11.0.14393.447", os_build:"14393", dir:"\system32", bulletin:bulletin, kb:"3200970") ||
  hotfix_is_vulnerable(os:"10", sp:0, file:"edgehtml.dll", version:"11.0.10586.672", os_build:"10586", dir:"\system32", bulletin:bulletin, kb:"3198586") ||
  hotfix_is_vulnerable(os:"10", sp:0, file:"edgehtml.dll", version:"11.0.10240.17184", os_build:"10240", dir:"\system32", bulletin:bulletin, kb:"3198585")
)
{
  set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}