Microsoft Internet Explorer 8/9/10/11 VBScript Engine information disclosure

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.
6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Microsoft Internet Explorer 8/9/10/11. Affected by this vulnerability is an unknown functionality of the component VBScript Engine. The manipulation results in information disclosure. This vulnerability is identified as CVE-2015-1684. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Internet Explorer 8/9/10/11 (Web Browser). Affected is an unknown function of the component VBScript Engine. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

VBScript.dll in the Microsoft VBScript 5.6 through 5.8 engine, as used in Internet Explorer 8 through 11 and other products, allows remote attackers to bypass the ASLR protection mechanism via a crafted web site, aka "VBScript ASLR Bypass."

The issue has been introduced in 03/05/2008. The weakness was released 05/12/2015 by SkyLined with Zero Day Initiative as MS15-043 as confirmed bulletin (Technet). The advisory is available at technet.microsoft.com. This vulnerability is traded as CVE-2015-1684 since 02/17/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 2624 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 83364 (MS15-053: Vulnerabilities in JScript and VBScript Scripting Engines Could Allow Security Feature Bypass (3057263)), 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 100232 (Microsoft Internet Explorer Cumulative Security Update (MS15-043)).

Applying the patch MS15-043 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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 19580.

The vulnerability is also documented in the databases at Tenable (83364), SecurityFocus (BID 74522†), SecurityTracker (ID 1032282†) and Vulnerability Center (SBV-50011†). Further details are available at krebsonsecurity.com. Entries connected to this vulnerability are available at VDB-75247, VDB-75248, VDB-75249 and VDB-75250. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 83364
Nessus Name: MS15-053: Vulnerabilities in JScript and VBScript Scripting Engines Could Allow Security Feature Bypass (3057263)
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: MS15-043
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/05/2008 🔍
02/17/2015 +2540 days 🔍
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 🔍
05/11/2022 +2555 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-043
Researcher: SkyLined
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2015-1684 (🔍)
GCVE (CVE): GCVE-0-2015-1684
GCVE (VulDB): GCVE-100-75306

OVAL: 🔍

SecurityFocus: 74522 - Microsoft VBScript CVE-2015-1684 ASLR Security Bypass Vulnerability
SecurityTracker: 1032282 - Microsoft Internet Explorer Multiple Bugs Let Remote Users Bypass ASLR and Execute Arbitrary Code
Vulnerability Center: 50011 - [MS15-043, MS15-053] Microsoft Internet Explorer 8-11 Remote VBScript ASLR Bypass, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/13/2015 11:37
Updated: 05/11/2022 08:25
Changes: 05/13/2015 11:37 (75), 04/07/2017 12:13 (11), 05/11/2022 08:25 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!