Microsoft Windows Server 2003 SP2 up to Server 2012 R2 Shell ShellExecute access control

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows. Affected is the function ShellExecute of the component Shell Handler. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2014-1807. Local access is required to approach this attack. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows (Operating System). Affected by this issue is the function ShellExecute of the component Shell Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The ShellExecute API in Windows Shell in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly implement file associations, which allows local users to gain privileges via a crafted application, as exploited in the wild in May 2014, aka "Windows Shell File Association Vulnerability."

The weakness was disclosed 05/13/2014 with Microsoft as MS14-027 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability is handled as CVE-2014-1807 since 01/29/2014. The attack needs to be approached locally. A simple authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 73986 (MS14-027: Vulnerability in Windows Shell Handler Could Allow Elevation of Privilege (2962488)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90950 (Microsoft Windows Shell Handler Privilege Escalation Vulnerability (MS14-027)).

Applying the patch MS14-027 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Zero-Day.cz (105), Tenable (73986), SecurityFocus (BID 67276†), Secunia (SA58278†) and SecurityTracker (ID 1030233†). blog.spiderlabs.com is providing further details. The entries VDB-13223, VDB-13222, VDB-13226 and VDB-13225 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Attacked

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Nessus ID: 73986
Nessus Name: MS14-027: Vulnerability in Windows Shell Handler Could Allow Elevation of Privilege (2962488)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 804295
OpenVAS Name: Microsoft Windows Shell Handler Privilege Escalation Vulnerability (2962488)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Zero-Day.cz: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: MS14-027

Timelineinfo

01/29/2014 🔍
05/13/2014 +104 days 🔍
05/13/2014 +0 days 🔍
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05/13/2014 +0 days 🔍
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05/14/2014 +1 days 🔍
05/14/2014 +0 days 🔍
05/14/2014 +0 days 🔍
05/17/2014 +3 days 🔍
12/20/2024 +3870 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS14-027
Organization: Microsoft
Status: Confirmed

CVE: CVE-2014-1807 (🔍)
GCVE (CVE): GCVE-0-2014-1807
GCVE (VulDB): GCVE-100-13232

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 67276 - Microsoft Windows 'Windows Shell' Handler Local Privilege Escalation Vulnerability
Secunia: 58278 - Microsoft Windows "ShellExecute" API Privilege Escalation Vulnerability, Moderately Critical
SecurityTracker: 1030233 - Microsoft Windows Shell Handler Lets Local Users Gain Elevated Privileges
Vulnerability Center: 44491 - [MS14-027] Microsoft Windows Local Code Execution via Improper File Associations by the ShellExecute API, Medium

scip Labs: https://www.scip.ch/en/?labs.20140213
Misc.: 🔍
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Entryinfo

Created: 05/17/2014 11:19
Updated: 12/20/2024 04:47
Changes: 05/17/2014 11:19 (86), 08/19/2018 20:12 (6), 06/19/2021 17:20 (2), 07/12/2024 03:50 (20), 12/20/2024 04:47 (2)
Complete: 🔍
Cache ID: 216::103

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