VDB-79180 · CVE-2015-6099 · MS15-118

Microsoft .NET Framework up to 4.6 cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft .NET Framework up to 4.6. This affects an unknown part. Executing a manipulation can lead to cross site scripting. This vulnerability is registered as CVE-2015-6099. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Microsoft .NET Framework up to 4.6 (Programming Language Software). It has been declared as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cross-site scripting (XSS) vulnerability in ASP.NET in Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, and 4.6 allows remote attackers to inject arbitrary web script or HTML via a crafted value, aka ".NET Elevation of Privilege Vulnerability."

The weakness was published 11/10/2015 by John Page as MS15-118 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability was named CVE-2015-6099 since 08/14/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability scanner Nessus provides a plugin with the ID 86825 (MS15-118: Security Update for .NET Framework to Address Elevation of Privilege (3104507)), 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 91108 (Microsoft .Net Framework Multiple Vulnerabilities (MS15-118)).

Applying the patch MS15-118 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 (86825), SecurityFocus (BID 77479†) and Vulnerability Center (SBV-54325†). Similar entries are available at VDB-79179 and VDB-79181. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Programming Language Software

Vendor

Microsoft

Name

.NET Framework

Version

License

free

Website

Vendor: https://www.microsoft.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 86825
Nessus Name: MS15-118: Security Update for .NET Framework to Address Elevation of Privilege (3104507)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 103306
OpenVAS Name: Microsoft .NET Framework Privilege Elevation Vulnerabilities (3104507)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS15-118

Timelineinfo

08/14/2015 🔍
11/10/2015 +88 days 🔍
11/10/2015 +0 days 🔍
11/10/2015 +0 days 🔍
11/10/2015 +0 days 🔍
11/11/2015 +1 days 🔍
11/11/2015 +0 days 🔍
11/11/2015 +0 days 🔍
06/27/2022 +2420 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-118
Researcher: John Page
Status: Confirmed

CVE: CVE-2015-6099 (🔍)
GCVE (CVE): GCVE-0-2015-6099
GCVE (VulDB): GCVE-100-79180
SecurityFocus: 77479 - Microsoft .NET Framework CVE-2015-6099 Cross Site Scripting Vulnerability
SecurityTracker: 1034116
Vulnerability Center: 54325 - [MS15-118] Microsoft .NET Framework Remote Elevation of Privileges Vulnerability in ASP.NET - CVE-2015-6099, Medium

See also: 🔍

Entryinfo

Created: 11/11/2015 17:02
Updated: 06/27/2022 10:02
Changes: 11/11/2015 17:02 (66), 04/05/2017 16:00 (10), 06/27/2022 10:01 (3), 06/27/2022 10:02 (1)
Complete: 🔍
Cache ID: 216::103