VDB-121207 · CVE-2018-8232 · BID 104640

Microsoft Visual Studio Macro Assembler input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Microsoft Visual Studio 2017/2017 Version 15.7.5/2017 Version 15.8 Preview. This impacts an unknown function of the component Macro Assembler. This manipulation causes input validation. This vulnerability is tracked as CVE-2018-8232. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability has been found in Microsoft Visual Studio 2017/2017 Version 15.7.5/2017 Version 15.8 Preview (Programming Tool Software) and classified as critical. Affected by this vulnerability is some unknown functionality of the component Macro Assembler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A Tampering vulnerability exists when Microsoft Macro Assembler improperly validates code, aka "Microsoft Macro Assembler Tampering Vulnerability." This affects Microsoft Visual Studio.

The bug was discovered 07/10/2018. The weakness was disclosed 07/11/2018 (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is known as CVE-2018-8232 since 03/14/2018. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/06/2023).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 91458 (Microsoft Visual Studio Security Update for July 2018).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104640†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

03/14/2018 🔍
07/10/2018 +117 days 🔍
07/10/2018 +0 days 🔍
07/10/2018 +0 days 🔍
07/11/2018 +1 days 🔍
07/11/2018 +0 days 🔍
04/06/2023 +1730 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-8232 (🔍)
GCVE (CVE): GCVE-0-2018-8232
GCVE (VulDB): GCVE-100-121207
SecurityFocus: 104640 - Microsoft Macro Assembler CVE-2018-8232 Security Bypass Vulnerability
SecurityTracker: 1041271

Entryinfo

Created: 07/11/2018 11:20
Updated: 04/06/2023 11:56
Changes: 07/11/2018 11:20 (63), 03/02/2020 13:18 (4), 04/06/2023 11:56 (3)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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