Valve Steam Client 2.10.91.91 Permission privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Valve Steam Client 2.10.91.91 and classified as critical. The affected element is an unknown function of the file %PROGRAMFILES(X86)%\Steam of the component Permission. Such manipulation leads to privileges management. This vulnerability is listed as CVE-2020-15530. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Valve Steam Client 2.10.91.91 and classified as critical. Affected by this issue is an unknown code of the file %PROGRAMFILES(X86)%\Steam of the component Permission. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Valve Steam Client 2.10.91.91. The installer allows local users to gain NT AUTHORITY\SYSTEM privileges because some parts of %PROGRAMFILES(X86)%\Steam and/or %COMMONPROGRAMFILES(X86)%\Steam have weak permissions during a critical time window. An attacker can make this time window arbitrarily long by using opportunistic locks.

The weakness was presented 07/05/2020. This vulnerability is handled as CVE-2020-15530 since 07/05/2020. Local access is required to approach this attack. A simple authentication is needed for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

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

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

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/05/2020 🔍
07/05/2020 +0 days 🔍
07/06/2020 +1 days 🔍
07/06/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-15530 (🔍)
GCVE (CVE): GCVE-0-2020-15530
GCVE (VulDB): GCVE-100-157658

Entryinfo

Created: 07/06/2020 07:28
Updated: 07/06/2020 07:33
Changes: 07/06/2020 07:28 (36), 07/06/2020 07:33 (17)
Complete: 🔍
Cache ID: 216::103

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

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