CVE-2011-1261
Microsoft Internet Explorer selection.empty Remote Code Execution Vulnerability
Severity Score
9.3
*CVSS v2
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Microsoft Internet Explorer 6 through 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 "Selection Object Memory Corruption Vulnerability."
Microsoft Internet Explorer v6 a la v9 no manejan adecuadamente los objetos en memoria, lo que permite a atacantes remotos ejecutar código de su elección accediendo a un objeto que (1) no ha sido iniciado adecuadamente o (2) es borrado.
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the way Internet explorer handles the javascript statement 'selection.empty' during certain onclick events. By causing a particular sequence of events, an attacker can cause a CDisplayObject to be freed while it is still in use. This results in an operation on previously freed memory that can be utilized to achieve remote code execution.
*Credits:
Anonymous
CVSS Scores
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-03-04 CVE Reserved
- 2011-06-14 CVE Published
- 2024-07-02 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-908: Use of Uninitialized Resource
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12755 | Signature |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-050 | 2022-02-28 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 6 Search vendor "Microsoft" for product "Internet Explorer" and version "6" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2003 Search vendor "Microsoft" for product "Windows Server 2003" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 6 Search vendor "Microsoft" for product "Internet Explorer" and version "6" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Xp Search vendor "Microsoft" for product "Windows Xp" | - | sp2, x64 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 6 Search vendor "Microsoft" for product "Internet Explorer" and version "6" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Xp Search vendor "Microsoft" for product "Windows Xp" | - | sp3 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 7 Search vendor "Microsoft" for product "Internet Explorer" and version "7" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2003 Search vendor "Microsoft" for product "Windows Server 2003" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 7 Search vendor "Microsoft" for product "Internet Explorer" and version "7" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 7 Search vendor "Microsoft" for product "Internet Explorer" and version "7" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 7 Search vendor "Microsoft" for product "Internet Explorer" and version "7" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Vista Search vendor "Microsoft" for product "Windows Vista" | - | sp1 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 7 Search vendor "Microsoft" for product "Internet Explorer" and version "7" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Vista Search vendor "Microsoft" for product "Windows Vista" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 7 Search vendor "Microsoft" for product "Internet Explorer" and version "7" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Xp Search vendor "Microsoft" for product "Windows Xp" | - | sp2, professional, x64 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 7 Search vendor "Microsoft" for product "Internet Explorer" and version "7" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Xp Search vendor "Microsoft" for product "Windows Xp" | - | sp3 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 7 Search vendor "Microsoft" for product "Windows 7" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2003 Search vendor "Microsoft" for product "Windows Server 2003" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Vista Search vendor "Microsoft" for product "Windows Vista" | - | sp1 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Vista Search vendor "Microsoft" for product "Windows Vista" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Xp Search vendor "Microsoft" for product "Windows Xp" | - | sp2, professional, x64 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 8 Search vendor "Microsoft" for product "Internet Explorer" and version "8" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Xp Search vendor "Microsoft" for product "Windows Xp" | - | sp3 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 9 Search vendor "Microsoft" for product "Internet Explorer" and version "9" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 7 Search vendor "Microsoft" for product "Windows 7" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 9 Search vendor "Microsoft" for product "Internet Explorer" and version "9" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 7 Search vendor "Microsoft" for product "Windows 7" | - | sp1 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 9 Search vendor "Microsoft" for product "Internet Explorer" and version "9" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 9 Search vendor "Microsoft" for product "Internet Explorer" and version "9" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 9 Search vendor "Microsoft" for product "Internet Explorer" and version "9" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2" | sp1 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 9 Search vendor "Microsoft" for product "Internet Explorer" and version "9" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Vista Search vendor "Microsoft" for product "Windows Vista" | - | sp1 |
Safe
|
| Microsoft Search vendor "Microsoft" | Internet Explorer Search vendor "Microsoft" for product "Internet Explorer" | 9 Search vendor "Microsoft" for product "Internet Explorer" and version "9" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Vista Search vendor "Microsoft" for product "Windows Vista" | - | sp2 |
Safe
|