Vulnerabilities > CVE-2011-0654 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Microsoft Windows 2003 Server and Windows Server 2003
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
Integer underflow in the BowserWriteErrorLogEntry function in the Common Internet File System (CIFS) browser service in Mrxsmb.sys or bowser.sys in Active Directory in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via a malformed BROWSER ELECTION message, leading to a heap-based buffer overflow, aka "Browser Pool Corruption Vulnerability." NOTE: some of these details are obtained from third party information.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 6 |
Common Weakness Enumeration (CWE)
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.
Exploit-Db
| description | Microsoft Windows 2003 - AD Pre-Auth BROWSER ELECTION Remote Heap Overflow. CVE-2011-0654. Dos exploit for windows platform |
| file | exploits/windows/dos/16166.py |
| id | EDB-ID:16166 |
| last seen | 2016-02-01 |
| modified | 2011-02-14 |
| platform | windows |
| port | |
| published | 2011-02-14 |
| reporter | Cupidon-3005 |
| source | https://www.exploit-db.com/download/16166/ |
| title | Microsoft Windows 2003 - AD Pre-Auth BROWSER ELECTION Remote Heap Overflow |
| type | dos |
Metasploit
| description | This module exploits a denial of service flaw in the Microsoft Windows SMB service on versions of Windows Server 2003 that have been configured as a domain controller. By sending a specially crafted election request, an attacker can cause a pool overflow. The vulnerability appears to be due to an error handling a length value while calculating the amount of memory to copy to a buffer. When there are zero bytes left in the buffer, the length value is improperly decremented and an integer underflow occurs. The resulting value is used in several calculations and is then passed as the length value to an inline memcpy operation. Unfortunately, the length value appears to be fixed at -2 (0xfffffffe) and causes considerable damage to kernel heap memory. While theoretically possible, it does not appear to be trivial to turn this vulnerability into remote (or even local) code execution. |
| id | MSF:AUXILIARY/DOS/WINDOWS/SMB/MS11_019_ELECTBOWSER |
| last seen | 2020-03-03 |
| modified | 2018-09-15 |
| published | 2011-10-15 |
| references | |
| reporter | Rapid7 |
| source | https://github.com/rapid7/metasploit-framework/blob/master//modules/auxiliary/dos/windows/smb/ms11_019_electbowser.rb |
| title | Microsoft Windows Browser Pool DoS |
Msbulletin
| bulletin_id | MS11-019 |
| bulletin_url | |
| date | 2011-04-12T00:00:00 |
| impact | Remote Code Execution |
| knowledgebase_id | 2511455 |
| knowledgebase_url | |
| severity | Critical |
| title | Vulnerabilities in SMB Client Could Allow Remote Code Execution |
Nessus
| NASL family | Windows : Microsoft Bulletins |
| NASL id | SMB_NT_MS11-019.NASL |
| description | The version of the SMB client software installed on the remote Windows host may be affected by multiple vulnerabilities which could allow an attacker to execute arbitrary code on the remote host subject to the privileges of the user running the affected software. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 53376 |
| published | 2011-04-13 |
| reporter | This script is Copyright (C) 2011-2018 Tenable Network Security, Inc. |
| source | https://www.tenable.com/plugins/nessus/53376 |
| title | MS11-019: Vulnerabilities in SMB Client Could Allow Remote Code Execution (2511455) |
Oval
| accepted | 2014-03-03T04:00:33.671-05:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| class | vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| definition_extensions |
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| description | Integer underflow in the BowserWriteErrorLogEntry function in the Common Internet File System (CIFS) browser service in Mrxsmb.sys or bowser.sys in Active Directory in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via a malformed BROWSER ELECTION message, leading to a heap-based buffer overflow, aka "Browser Pool Corruption Vulnerability." NOTE: some of these details are obtained from third party information. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| family | windows | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| id | oval:org.mitre.oval:def:12637 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| status | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| submitted | 2011-04-12T13:00:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| title | Browser Pool Corruption Vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| version | 48 |
References
- http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0284.html
- http://blogs.technet.com/b/mmpc/archive/2011/02/16/my-sweet-valentine-the-cifs-browser-protocol-heap-corruption-vulnerability.aspx
- http://blogs.technet.com/b/srd/archive/2011/02/16/notes-on-exploitability-of-the-recent-windows-browser-protocol-issue.aspx
- http://secunia.com/advisories/43299
- http://www.exploit-db.com/exploits/16166
- http://www.kb.cert.org/vuls/id/323172
- http://www.securityfocus.com/bid/46360
- http://www.securitytracker.com/id?1025328
- http://www.us-cert.gov/cas/techalerts/TA11-102A.html
- http://www.vupen.com/english/advisories/2011/0394
- http://www.vupen.com/english/advisories/2011/0938
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-019
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65376
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12637