SYSTEM code execution via pipe-client impersonation
Published Dec 3, 2021 · Updated Aug 4, 2024
Privilege escalation in Trend Micro Worry-Free Business Security 10.0 SP1 allows local users to execute arbitrary code as SYSTEM. The Security Server permits an untrusted process to impersonate the client of a named pipe, crossing the intended privilege boundary. Exploitation requires low-privileged code execution on the Windows host and yields full SYSTEM-context code execution.
Summary
What happened
Privilege escalation in Trend Micro Worry-Free Business Security 10.0 SP1 allows local users to execute arbitrary code as SYSTEM. The Security Server permits an untrusted process to impersonate the client of a named pipe, crossing the intended privilege boundary. Exploitation requires low-privileged code execution on the Windows host and yields full SYSTEM-context code execution.
The record
- CVE
- CVE-2021-44019
- Published
- Dec 3, 2021
- Updated
- Aug 4, 2024
- Vendor
- Trend Micro
- Product
- Trend Micro Worry-Free Business Security
- Classifications
- CWE-269, T1134.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 3, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=10.0 SP1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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