Vulnerabilities > CVE-2011-1260 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Internet Explorer 8/9
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
Microsoft Internet Explorer 8 and 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, aka "Layout Memory Corruption Vulnerability."
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 2 | |
OS | Microsoft
| 20 |
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 | MS11-050 IE mshtml!CObjectElement Use After Free. CVE-2011-1260. Remote exploit for windows platform |
id | EDB-ID:17409 |
last seen | 2016-02-02 |
modified | 2011-06-17 |
published | 2011-06-17 |
reporter | metasploit |
source | https://www.exploit-db.com/download/17409/ |
title | Microsoft Internet Explorer - mshtml!CObjectElement Use After Free MS11-050 |
Metasploit
description | This module exploits a use-after-free vulnerability in Internet Explorer. The vulnerability occurs when an invalid tag exists and other elements overlap/cover where the object tag should be when rendered (due to their styles/positioning). The mshtml!CObjectElement is then freed from memory because it is invalid. However, the mshtml!CDisplay object for the page continues to keep a reference to the freed and attempts to call a function on it, leading to the use-after-free. Please note that for IE 8 targets, JRE (Java Runtime Environment) is required to bypass DEP (Data Execution Prevention). |
id | MSF:EXPLOIT/WINDOWS/BROWSER/MS11_050_MSHTML_COBJECTELEMENT |
last seen | 2020-06-04 |
modified | 2017-10-05 |
published | 2011-06-16 |
references | |
reporter | Rapid7 |
source | https://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/windows/browser/ms11_050_mshtml_cobjectelement.rb |
title | MS11-050 IE mshtml!CObjectElement Use After Free |
Msbulletin
bulletin_id | MS11-050 |
bulletin_url | |
date | 2011-06-14T00:00:00 |
impact | Remote Code Execution |
knowledgebase_id | 2530548 |
knowledgebase_url | |
severity | Critical |
title | Cumulative Security Update for Internet Explorer |
Nessus
NASL family | Windows : Microsoft Bulletins |
NASL id | SMB_NT_MS11-050.NASL |
description | The remote host is missing Internet Explorer (IE) Security Update 2497640. The installed version of IE is affected by several vulnerabilities that could allow an attacker to execute arbitrary code on the remote host. |
last seen | 2020-06-01 |
modified | 2020-06-02 |
plugin id | 55130 |
published | 2011-06-15 |
reporter | This script is Copyright (C) 2011-2018 Tenable Network Security, Inc. |
source | https://www.tenable.com/plugins/nessus/55130 |
title | MS11-050: Cumulative Security Update for Internet Explorer (2530548) |
code |
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Oval
accepted | 2014-08-18T04:00:24.036-04:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
class | vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
contributors |
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definition_extensions |
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description | Microsoft Internet Explorer 8 and 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, aka "Layout Memory Corruption Vulnerability." | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
family | windows | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
id | oval:org.mitre.oval:def:12308 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
status | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
submitted | 2011-06-14T13:00:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
title | Layout Memory Corruption Vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
version | 79 |
Saint
bid | 48208 |
description | Microsoft Internet Explorer layout-grid-char Style Property Use-After-Free Memory Corruption |
id | win_patch_ie_v8 |
osvdb | 72950 |
title | ie_layoutgridchar |
type | client |