Microsoft Internet Explorer/Edge memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.8$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Microsoft Internet Explorer and Edge and classified as critical. The affected element is an unknown function. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2017-8669. Remote exploitation of the attack is possible. No exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer and Edge (Web Browser) (the affected version unknown). It has been classified as critical. This affects an unknown part. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user due to Microsoft browsers improperly handling objects in memory while rendering content, aka "Microsoft Browser Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8653.

The bug was discovered 08/08/2017. The weakness was published 08/08/2017 as KB4034681 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2017-8669 since 05/03/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. 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 01/08/2021). The advisory points out:

A remote code execution vulnerability exists in the way Microsoft browsers handle objects in memory while rendering content. 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.

The vulnerability scanner Nessus provides a plugin with the ID 102264 (KB4034658: Windows 10 Version 1607 and Windows Server 2016 August 2017 Cumulative Update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100317 (Microsoft Internet Explorer Security Update for August 2017).

Applying the patch KB4034681 is able to eliminate this problem. The bugfix is ready for download at catalog.update.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 (102264) and SecurityFocus (BID 100068†). Similar entries are available at VDB-104989, VDB-104990, VDB-104991 and VDB-105007. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

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

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102264
Nessus Name: KB4034658: Windows 10 Version 1607 and Windows Server 2016 August 2017 Cumulative Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802286
OpenVAS Name: Microsoft Internet Explorer Multiple Vulnerabilities (KB4034733)
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: KB4034681

Timelineinfo

05/03/2017 🔍
08/08/2017 +97 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/09/2017 +1 days 🔍
01/08/2021 +1248 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB4034681
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8669 (🔍)
GCVE (CVE): GCVE-0-2017-8669
GCVE (VulDB): GCVE-100-105045

OVAL: 🔍

SecurityFocus: 100068 - Microsoft Edge and Internet Explorer CVE-2017-8669 Remote Memory Corruption Vulnerability
SecurityTracker: 1039094

See also: 🔍

Entryinfo

Created: 08/09/2017 12:28
Updated: 01/08/2021 08:47
Changes: 08/09/2017 12:28 (87), 11/05/2019 08:25 (5), 01/08/2021 08:47 (2)
Complete: 🔍
Cache ID: 216::103

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