Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2019-15316 First vendor Publication 2019-08-21
Vendor Cve Last vendor Modification 2020-08-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7
Base Score 7 Environmental Score 7
impact SubScore 5.9 Temporal Score 7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\SYSTEM) via crafted use of CreateMountPoint.exe and SetOpLock.exe to leverage a TOCTOU race condition.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15316

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-732 Incorrect Permission Assignment for Critical Resource (CWE/SANS Top 25)
50 % CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 35

Sources (Detail)

Source Url
MISC https://amonitoring.ru/article/onemore_steam_eop_0day/
https://habr.com/ru/company/pm/blog/464367/
https://www.youtube.com/watch?v=I93aH86BUaE
https://www.youtube.com/watch?v=ZCHrjP0cMew

Alert History

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Date Informations
2020-09-03 01:25:49
  • Multiple Updates
2020-07-16 01:23:11
  • Multiple Updates
2020-05-24 01:28:05
  • Multiple Updates
2020-05-23 02:25:21
  • Multiple Updates
2019-08-30 17:19:35
  • Multiple Updates
2019-08-22 05:19:46
  • First insertion