MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178) - Nessus

High Plugin ID: 25024

This page contains detailed information about the MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178) 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: 25024
Name: MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178)
Filename: smb_nt_ms07-021.nasl
Vulnerability Published: 2006-12-15
This Plugin Published: 2007-04-10
Last Modification Time: 2018-11-15
Plugin Version: 1.31
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: 2006-12-15
Patch Published: 2007-04-10
CVE [?]: CVE-2006-6696, CVE-2006-6797, CVE-2007-1209
CPE [?]: cpe:/o:microsoft:windows

Synopsis

Arbitrary code can be executed on the remote host through the web browser.

Description

The remote host is running a version of Windows containing a bug in the CSRSS error message handling routine that could allow an attacker to execute arbitrary code on the remote host by luring a user on the remote host into visiting a rogue website.

Additionally, the system is prone to the following types of attack :

- Local Privilege Elevation

- Denial of Service (Local)

Solution

Microsoft has released a set of patches for Windows 2000, XP, 2003 and Vista.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178) vulnerability:

Exploit-DB: exploits/windows/dos/2967.cs
[EDB-2967: Microsoft Windows - 'MessageBox' Memory Corruption Local Denial of Service]
Immunity Canvas: CANVAS

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:F/RL:OF/RC:C

CVSS Base Score:	9.3 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.6
CVSS Temporal Score:	7.7 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.7 (High)

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Plugin Source

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

include("compat.inc");

if (description)
{
 script_id(25024);
 script_version("1.31");
 script_cvs_date("Date: 2018/11/15 20:50:30");

 script_cve_id("CVE-2006-6696", "CVE-2006-6797", "CVE-2007-1209");
 script_bugtraq_id(21688, 23324, 23338);
 script_xref(name:"MSFT", value:"MS07-021");
 script_xref(name:"MSKB", value:"930178");
 
 script_xref(name:"CERT", value:"740636");
 script_xref(name:"CERT", value:"219848");
 script_xref(name:"EDB-ID", value:"2967");

 script_name(english:"MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178)");
 script_summary(english:"Determines the presence of update 930178");

 script_set_attribute(attribute:"synopsis", value:
"Arbitrary code can be executed on the remote host through the web
browser.");
 script_set_attribute(attribute:"description", value:
"The remote host is running a version of Windows containing a bug in the
CSRSS error message handling routine that could allow an attacker to
execute arbitrary code on the remote host by luring a user on the remote
host into visiting a rogue website.

Additionally, the system is prone to the following types of attack :

- Local Privilege Elevation

- Denial of Service (Local)");
 script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2007/ms07-021");
 script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 2000, XP, 2003 and
Vista.");
 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:F/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
 script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
 script_set_attribute(attribute:"canvas_package", value:'CANVAS');
 script_cwe_id(119);

 script_set_attribute(attribute:"vuln_publication_date", value:"2006/12/15");
 script_set_attribute(attribute:"patch_publication_date", value:"2007/04/10");
 script_set_attribute(attribute:"plugin_publication_date", value:"2007/04/10");

 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_copyright(english:"This script is Copyright (C) 2007-2018 Tenable Network Security, Inc.");
 script_family(english:"Windows : Microsoft Bulletins");

 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 = 'MS07-021';
kb = "930178";

kbs = make_list(kb);
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(win2k:'4,5', xp:'2', win2003:'0,2', vista:'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);

if (
  hotfix_is_vulnerable(os:"6.0", sp:0, file:"Winsrv.dll", version:"6.0.6000.16445", dir:"\System32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:0, file:"Winsrv.dll", version:"6.0.6000.20522", min_version:"6.0.6000.20000", dir:"\System32", bulletin:bulletin, kb:kb) ||

  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Winsrv.dll", version:"5.2.3790.4043", dir:"\System32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.2", sp:1, file:"Winsrv.dll", version:"5.2.3790.2902", dir:"\System32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.2", sp:0, file:"Winsrv.dll", version:"5.2.3790.658", dir:"\System32", bulletin:bulletin, kb:kb) ||

  hotfix_is_vulnerable(os:"5.1", file:"Winsrv.dll", version:"5.1.2600.3103", dir:"\System32", bulletin:bulletin, kb:kb) ||

  hotfix_is_vulnerable(os:"5.0", file:"Winsrv.dll", version:"5.0.2195.7135", dir:"\System32", bulletin:bulletin, kb:kb)
)
{
  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');
}

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_ms07-021.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\smb_nt_ms07-021.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/smb_nt_ms07-021.nasl

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How to Run

Here is how to run the MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178) 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 MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178) plugin ID 25024.
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_ms07-021.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a smb_nt_ms07-021.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_ms07-021.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_ms07-021.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

21688, 23324, 23338

MSKB | Microsoft Knowledge Base:

930178

MSFT | Microsoft Security Bulletin:

MS07-021

CERT | Computer Emergency Response Team:

219848, 740636

CWE | Common Weakness Enumeration:

CWE-119 (Weakness) Improper Restriction of Operations within the Bounds of a Memory Buffer

See also:

Similar and related Nessus plugins:

23998 - MS07-002: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (927198)
24000 - MS07-004: Vulnerability in Vector Markup Language Could Allow Remote Code Execution (929969)
24333 - MS07-009: Vulnerability in Microsoft Data Access Components Could Allow Remote Code Execution (927779)
24338 - MS07-014: Vulnerabilities in Microsoft Word Could Allow Remote Code Execution (929434)
24340 - MS07-016: Cumulative Security Update for Internet Explorer (928090)
24911 - MS07-017: Vulnerabilities in GDI Could Allow Remote Code Execution (925902)
25166 - MS07-027: Cumulative Security Update for Internet Explorer (931768)
25168 - MS07-029: Vulnerability in Windows DNS RPC Interface Could Allow Remote Code Execution (935966)
25486 - MS07-033: Cumulative Security Update for Internet Explorer (933566)
25487 - MS07-034: Cumulative Security Update for Outlook Express and Windows Mail (929123)
25691 - MS07-040: Vulnerabilities in .NET Framework Could Allow Remote Code Execution (931212)
25692 - MS07-041: Vulnerability in Microsoft Internet Information Services Could Allow Remote Code Execution (939373)
25880 - MS07-042: Vulnerability in Microsoft XML Core Services Could Allow Remote Code Execution (936227)
25883 - MS07-045: Cumulative Security Update for Internet Explorer (937143)
25886 - MS07-050: Vulnerability in Vector Markup Language Could Allow Remote Code Execution (938127)
26017 - MS07-051: Vulnerability in Microsoft Agent Could Allow Remote Code Execution (938827)
26022 - MS07-052: Vulnerability in Crystal Reports for Visual Studio Could Allow Remote Code Execution (941522)
26019 - MS07-054: Vulnerability in MSN Messenger and Windows Live Messenger Could Allow Remote Code Execution (942099)
26961 - MS07-055: Vulnerability in Kodak Image Viewer Could Allow Remote Code Execution (923810)
26965 - MS07-059: Vulnerability in Windows SharePoint Could Result in Elevation of Privilege (942017)
28183 - MS07-061: Vulnerability in Windows URI Handling Could Allow Remote Code Execution (943460)
28184 - MS07-062: Vulnerability in DNS Could Allow Spoofing (941672)
29308 - MS07-064: Vulnerabilities in DirectX Could Allow Remote Code Execution (941568)
29309 - MS07-065: Vulnerability in Message Queuing Could Allow Remote Code Execution (937894)
29310 - MS07-066: Vulnerability in Windows Kernel Could Allow Elevation of Privilege (943078)
29311 - MS07-067: Vulnerability in Macrovision Driver Could Allow Local Elevation of Privilege (944653)
29313 - MS07-069: Cumulative Security Update for Internet Explorer (942615)
72832 - MS07-029: Vulnerability in Windows DNS RPC Interface Could Allow Remote Code Execution (935966) (uncredentialed check)
29314 - MS07-065: Vulnerability in Message Queuing Could Allow Remote Code Execution (937894) (uncredentialed check)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file smb_nt_ms07-021.nasl version 1.31. For more plugins, visit the Nessus Plugin Library.

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MS07-021: Vulnerabilities in CSRSS Could Allow Remote Code Execution (930178) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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