Microsoft Internet Explorer 9/10/11 VBScript Scripting Engine memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Microsoft Internet Explorer 9/10/11 (Web Browser). Affected is an unknown code of the component VBScript Scripting Engine. 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.

The bug was discovered 11/13/2018. The weakness was disclosed 11/13/2018 by Ivan Fratric with Google Project Zero as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2018-8552 since 03/14/2018. 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. Technical details are unknown but a public exploit is available. The advisory points out:

An information disclosure vulnerability exists when VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user’s computer or data.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 118916 (KB4467691: Windows 10 Version 1607 and Windows Server 2016 November 2018 Security 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 100346 (Microsoft Internet Explorer Security Update for November 2018).

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

The vulnerability is also documented in the databases at Tenable (118916) and Exploit-DB (45924). The entries 126704, 126705, 126707 and 126708 are pretty similar.

Productinfo

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  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 4.3
Vendor Vector (Microsoft): 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118916
Nessus Name: KB4467691: Windows 10 Version 1607 and Windows Server 2016 November 2018 Security Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Timelineinfo

03/14/2018 🔍
11/13/2018 +244 days 🔍
11/13/2018 +0 days 🔍
11/13/2018 +0 days 🔍
11/13/2018 +0 days 🔍
11/13/2018 +0 days 🔍
11/13/2018 +0 days 🔍
11/14/2018 +1 days 🔍
06/06/2023 +1665 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: Ivan Fratric
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-8552 (🔍)
SecurityFocus: 105786 - Microsoft Internet Explorer CVE-2018-8552 Memory Corruption Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 11/14/2018 09:31
Updated: 06/06/2023 08:17
Changes: 11/14/2018 09:31 (87), 04/12/2020 09:48 (10), 06/06/2023 08:13 (4), 06/06/2023 08:17 (1)
Complete: 🔍

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