MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436) - Nessus

High Plugin ID: 48286

This page contains detailed information about the MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 48286
Name: MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436)
Filename: smb_nt_ms10-049.nasl
Vulnerability Published: 2009-11-04
This Plugin Published: 2010-08-11
Last Modification Time: 2018-11-15
Plugin Version: 1.21
Plugin Type: local
Plugin Family: Windows : Microsoft Bulletins
Dependencies: ms_bulletin_checks_possible.nasl, smb_hotfixes.nasl
Required KB Items [?]: SMB/MS_Bulletin_Checks/Possible

Vulnerability Information

Severity: High
Vulnerability Published: 2009-11-04
Patch Published: 2010-08-10
CVE [?]: CVE-2009-3555, CVE-2010-2566
CPE [?]: cpe:/o:microsoft:windows

Synopsis

It may be possible to execute arbitrary code on the remote Windows host using the Secure Channel security package.

Description

The remote Windows host is running a version of the Secure Channel (SChannel) security package that is affected by one or more of the following vulnerabilities :

- The SChannel authentication component allows a client to renegotiate the connection after the initial handshake, which could be abused to inject information into an encrypted connection, effectively sending traffic spoofing an authenticated client. (CVE-2009-3555)

- The way that SChannel validates a certificate request message sent by a server could lead to a denial of service or even allow execution of arbitrary code if an attacker can trick a user on the affected system into connecting to malicious web server over SSL or TLS. (CVE-2010-2566)

Solution

Microsoft has released a set of patches for Windows XP, 2003, Vista, 2008, 7, and 2008 R2.

Public Exploits

Target Network Port(s): 139, 445
Target Asset(s): Host/patch_management_checks
Exploit Available: True (Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436) vulnerability:

Exploit-DB: exploits/multiple/remote/10579.py
[EDB-10579: TLS - Renegotiation]
GitHub: https://github.com/GiJ03/ReconScan
[CVE-2009-3555]
GitHub: https://github.com/RedHatProductSecurity/CVE-HOWTO
[CVE-2009-3555]
GitHub: https://github.com/RoliSoft/ReconScan
[CVE-2009-3555]
GitHub: https://github.com/ekiojp/hanase
[CVE-2009-3555]
GitHub: https://github.com/galeone/letsencrypt-lighttpd
[CVE-2009-3555]
GitHub: https://github.com/issdp/test
[CVE-2009-3555]
GitHub: https://github.com/johnwchadwick/cve-2009-3555-test-server
[CVE-2009-3555: A TLS server using a vendored fork of the Go TLS stack that has renegotation ...]
GitHub: https://github.com/matoweb/Enumeration-Script
[CVE-2009-3555]
GitHub: https://github.com/withdk/pulse-secure-vpn-mitm-research
[CVE-2009-3555]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:M/Au:N/C:C/I:C/A:C/E:POC/RL:OF/RC:C

CVSS Base Score:	9.3 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.6
CVSS Temporal Score:	7.3 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.3 (High)

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Plugin Source

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

include("compat.inc");

if (description)
{
  script_id(48286);
  script_version("1.21");
  script_cvs_date("Date: 2018/11/15 20:50:30");

  script_cve_id("CVE-2009-3555", "CVE-2010-2566");
  script_bugtraq_id(36935, 42246);
  script_xref(name:"MSFT", value:"MS10-049");
  script_xref(name:"MSKB", value:"980436");

  script_name(english:"MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436)");
  script_summary(english:"Checks version of Schannel.dll");

  script_set_attribute(attribute:"synopsis", value:
"It may be possible to execute arbitrary code on the remote Windows
host using the Secure Channel security package.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is running a version of the Secure Channel
(SChannel) security package that is affected by one or more of the
following vulnerabilities :

  - The SChannel authentication component allows a client to
    renegotiate the connection after the initial handshake,
    which could be abused to inject information into an encrypted
    connection, effectively sending traffic spoofing an
    authenticated client. (CVE-2009-3555)

  - The way that SChannel validates a certificate request message
    sent by a server could lead to a denial of service or even allow
    execution of arbitrary code if an attacker can trick a user on
    the affected system into connecting to malicious web server over
   SSL or TLS. (CVE-2010-2566)");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2010/ms10-049");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows XP, 2003, Vista,
2008, 7, and 2008 R2.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(310);

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/08/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/08/11");

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

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

  script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");

  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_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS10-049';
kbs = make_list("980436");
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);

if (hotfix_check_sp_range(xp:'3', win2003:'2', vista:'1,2', win7:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

rootfile = hotfix_get_systemroot();
if (!rootfile) exit(1, "Failed to get the system root.");

share = hotfix_path2share(path:rootfile);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

kb = '980436';
if (
  # Windows 7 / Server 2008 R2
  hotfix_is_vulnerable(os:"6.1", sp:0,             file:"Schannel.dll", version:"6.1.7600.20735", min_version:"6.1.7600.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:0,             file:"Schannel.dll", version:"6.1.7600.16612", min_version:"6.1.7600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Vista / Windows Server 2008
  hotfix_is_vulnerable(os:"6.0", sp:2,             file:"Schannel.dll", version:"6.0.6002.22422", min_version:"6.0.6002.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2,             file:"Schannel.dll", version:"6.0.6002.18269", min_version:"6.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:1,             file:"Schannel.dll", version:"6.0.6001.22709", min_version:"6.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:1,             file:"Schannel.dll", version:"6.0.6001.18490", min_version:"6.0.6001.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 2003
  hotfix_is_vulnerable(os:"5.2", sp:2,             file:"Schannel.dll", version:"5.2.3790.4724", dir:"\System32", bulletin:bulletin, kb:kb) ||

  # Windows XP
  hotfix_is_vulnerable(os:"5.1", sp:3, arch:"x86", file:"Schannel.dll", version:"5.1.2600.6006", dir:"\System32", bulletin:bulletin, kb:kb)
)
{
  set_kb_item(name:"SMB/Missing/MS10-049", value:TRUE);
  hotfix_security_hole();

  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/smb_nt_ms10-049.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\smb_nt_ms10-049.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/smb_nt_ms10-049.nasl

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How to Run

Here is how to run the MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Windows : Microsoft Bulletins plugin family.
On the right side table select MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436) plugin ID 48286.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl smb_nt_ms10-049.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a smb_nt_ms10-049.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - smb_nt_ms10-049.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state smb_nt_ms10-049.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

36935, 42246

MSKB | Microsoft Knowledge Base:

980436

MSFT | Microsoft Security Bulletin:

MS10-049

CWE | Common Weakness Enumeration:

CWE-310 (Category) Cryptographic Issues

See also:

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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file smb_nt_ms10-049.nasl version 1.21. For more plugins, visit the Nessus Plugin Library.

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MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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