Low
CVE-2020-0754
CVE ID
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CVE-2020-0754
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
An elevation of privilege vulnerability exists in Windows Error Reporting (WER) when WER handles and executes files, aka ‘Windows Error Reporting Elevation of Privilege Vulnerability’. This CVE ID is unique from CVE-2020-0753.
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Ratings
-
Attacker ValueLow
-
ExploitabilityLow
Technical Analysis
Analysis is available at https://github.com/afang5472/CVE-2020-0753-and-CVE-2020-0754/blob/master/WERReport-CVE-2020-0754/WERRaceCondition.docx although it doesn’t seem like the PoC code is available upon initial inspection.
This vulnerability is fairly similar to CVE-2020-0753 and results in arbitrary file deletion as the SYSTEM user should an attacker be able to create a symbolic link for a temporary file at the right time.
Vulnerabilty also exists within wersvc.dll, although the given function name is not provided within the writeup to the best of my knowledge.
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General Information
Vendors
- microsoft
Products
- windows 10 -,
- windows 10 1607,
- windows 10 1709,
- windows 10 1803,
- windows 10 1809,
- windows 10 1903,
- windows 7 -,
- windows 8.1 -,
- windows rt 8.1 -,
- windows server 2008 -,
- windows server 2008 r2,
- windows server 2012 -,
- windows server 2012 r2,
- windows server 2016 -,
- windows server 2016 1803,
- windows server 2016 1903,
- windows server 2016 1909,
- windows server 2019 -
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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