High
CVE-2018-8453
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Description
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Type
High
(3 users assessed)
High
(3 users assessed)Unknown
Unknown
Unknown
CVE-2018-8453
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Description
“An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory” – MITRE description.
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Ratings
-
ExploitabilityHigh
Technical Analysis
The handling of objects in memory allowed for a double-free of a memory region, which could be used to escalate privileges on a local system. See MSRC link for vulnerable versions and patch information.
The https://github.com/ze0r/cve-2018-8453-exp PoC for x86 systems successfully worked for me on Win10 x86 systems. The x64 version did not work for me though.
Ratings
-
Attacker ValueHigh
Technical Analysis
Reported as exploited in the wild as part of Google’s 2020 0day vulnerability spreadsheet they made available at https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=1869060786. Original tweet announcing this spreadsheet with the 2020 findings can be found at https://twitter.com/maddiestone/status/1329837665378725888
General Information
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Additional Info
Technical Analysis
Report as Exploited in the Wild
What do we mean by "exploited in the wild"?
By selecting this, you are verifying to the AttackerKB community that either you, or a reputable source (example: a security vendor or researcher), has observed an active attempt by attackers, or IOCs related, to exploit this vulnerability outside of a research environment.
A vulnerability should also be considered "exploited in the wild" if there is a publicly available PoC or exploit (example: in an exploitation framework like Metasploit).
