Microsoft Internet Explorer 9/10/11 Scripting Engine Code Execution memory corruption – DigitalMunition




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Published on June 13th, 2019 📆 | 6689 Views ⚑

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Microsoft Internet Explorer 9/10/11 Scripting Engine Code Execution memory corruption

CVSS Meta Temp Score Current Exploit Price (≈)
6.6 $5k-$25k

A vulnerability classified as critical has been found in Microsoft Internet Explorer 9/10/11 (Web Browser). This affects an unknown code of the component Scripting Engine. The manipulation with an unknown input leads to a memory corruption vulnerability (Code Execution). CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 06/11/2019 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The public release was coordinated in cooperation with Microsoft. This vulnerability is uniquely identified as CVE-2019-0920 since 11/26/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/12/2019). It is expected to see the exploit prices for this product decreasing in the near future. The advisory points out:

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Type

Vendor

Name

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.6

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

Vendor Base Score (Microsoft): 7.5
Vendor Vector (Microsoft): 🔒


VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Memory corruption / Code Execution (CWE-119)
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍Recommended: Patch
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

11/26/2018 CVE assigned
06/11/2019 +197 days Advisory disclosed
06/11/2019 +0 days Countermeasure disclosed
06/12/2019 +1 days VulDB entry created
06/12/2019 +0 days VulDB last updateVendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed
Coordinated: 🔒

CVE: CVE-2019-0920 (🔒)

Created: 06/12/2019 09:36 PM
Complete: 🔍

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