Microsoft Silverlight 5 Integrity Level access control

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Silverlight 5. It has been rated as critical. This affects an unknown part of the component Integrity Level Handler. The manipulation leads to access control. This vulnerability is documented as CVE-2015-1715. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Silverlight 5 (Multimedia Player Software). This issue affects an unknown function of the component Integrity Level 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. The summary by CVE is:

Microsoft Silverlight 5 before 5.1.40416.00 allows remote attackers to bypass intended integrity-level restrictions via a crafted Silverlight application, aka "Microsoft Silverlight Out of Browser Application Vulnerability."

The weakness was released 05/12/2015 by Ligen with Exodus Intelligence as MS15-049 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. The identification of this vulnerability is CVE-2015-1715 since 02/17/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 83354 (MS15-049: Vulnerability in Silverlight Could Allow Elevation of Privilege (3058985)), 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 91050 (Microsoft Silverlight Elevation of Privilege Vulnerability (MS15-049)).

Applying the patch MS15-049 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 Tenable (83354), SecurityFocus (BID 74503†), SecurityTracker (ID 1032298†) and Vulnerability Center (SBV-50045†). krebsonsecurity.com is providing further details. Entries connected to this vulnerability are available at VDB-75247, VDB-75248, VDB-75249 and VDB-75250. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 83354
Nessus Name: MS15-049: Vulnerability in Silverlight Could Allow Elevation of Privilege (3058985)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 103180
OpenVAS Name: Microsoft Silverlight Elevation of Privilege Vulnerability (3058985) (Mac OS X)
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OpenVAS Family: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS15-049

Timelineinfo

02/17/2015 🔍
05/12/2015 +84 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/13/2015 +1 days 🔍
05/13/2015 +0 days 🔍
05/13/2015 +0 days 🔍
11/30/2024 +3489 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-049
Researcher: Ligen
Organization: Exodus Intelligence
Status: Confirmed

CVE: CVE-2015-1715 (🔍)
GCVE (CVE): GCVE-0-2015-1715
GCVE (VulDB): GCVE-100-75341

OVAL: 🔍

SecurityFocus: 74503 - Microsoft Silverlight CVE-2015-1715 Privilege Escalation Vulnerability
SecurityTracker: 1032298 - Microsoft Silverlight Permission Error Lets Local and Remote Users Gain Elevated Privileges
Vulnerability Center: 50045 - [MS15-049] Microsoft Silverlight 5 Local Privilege Escalation Vulnerability, High

Misc.: 🔍
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Entryinfo

Created: 05/13/2015 12:27
Updated: 11/30/2024 08:58
Changes: 05/13/2015 12:27 (74), 06/28/2017 06:28 (8), 05/17/2022 09:50 (3), 11/30/2024 08:58 (16)
Complete: 🔍
Cache ID: 216::103

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