Microsoft .NET Framework up to 4.5.2 WinForms access control

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.
5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft .NET Framework up to 4.5.2. It has been declared as critical. Affected by this issue is some unknown functionality of the component WinForms. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2015-1673. 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 classified as critical was found in Microsoft .NET Framework up to 4.5.2 (Programming Language Software). This vulnerability affects some unknown processing of the component WinForms. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 05/12/2015 by Kalle Niemitalo as MS15-048 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability was named CVE-2015-1673 since 02/17/2015. The exploitation appears to be difficult. 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 T1068.

The vulnerability scanner Nessus provides a plugin with the ID 83356 (MS15-048: Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (3057134)), 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 91053 (Microsoft .NET Framework Elevation of Privilege and Denial Of Service Vulnerability (MS15-048)).

Applying the patch MS15-048 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 (83356), SecurityFocus (BID 74487†), SecurityTracker (ID 1032297†) and Vulnerability Center (SBV-50056†). Additional details are provided at krebsonsecurity.com. Similar entries are available at VDB-75247, VDB-75248, VDB-75249 and VDB-75250. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 83356
Nessus Name: MS15-048: Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (3057134)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus 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: MS15-048
Fortigate IPS: 🔍

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 🔍
05/13/2015 +1 days 🔍
05/13/2015 +0 days 🔍
05/13/2015 +0 days 🔍
05/17/2022 +2561 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-048
Researcher: Kalle Niemitalo
Status: Confirmed

CVE: CVE-2015-1673 (🔍)
GCVE (CVE): GCVE-0-2015-1673
GCVE (VulDB): GCVE-100-75340

OVAL: 🔍

SecurityFocus: 74487 - Microsoft .NET Framework CVE-2015-1673 Remote Privilege Escalation Vulnerability
SecurityTracker: 1032297 - Microsoft .NET Bugs Let Remote Users Gain Elevated Privileges and Deny Service
Vulnerability Center: 50056 - [MS15-048] Microsoft .NET Remote Privilege Escalation due to a Flaw in Windows Forms Libraries - CVE-2015-1673, Critical

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/13/2015 12:24
Updated: 05/17/2022 09:48
Changes: 05/13/2015 12:24 (70), 04/05/2017 16:03 (9), 05/17/2022 09:45 (2), 05/17/2022 09:48 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!