System denial of service via symlink overwrite
Published Jan 8, 2022 · Updated Aug 4, 2024
Link-following in Trend Micro Worry-Free Business Security 10.0 SP1 allows local users to cause a system denial of service. The Security Agent Listener service follows an attacker-created symbolic link and overwrites its target file while running as SYSTEM. Exploitation requires low-privileged code execution on the Windows host, and the resulting file corruption can interrupt the system.
Summary
What happened
Link-following in Trend Micro Worry-Free Business Security 10.0 SP1 allows local users to cause a system denial of service. The Security Agent Listener service follows an attacker-created symbolic link and overwrites its target file while running as SYSTEM. Exploitation requires low-privileged code execution on the Windows host, and the resulting file corruption can interrupt the system.
The record
- CVE
- CVE-2021-45442
- Published
- Jan 8, 2022
- Updated
- Aug 4, 2024
- Vendor
- Trend Micro
- Product
- Trend Micro Worry-Free Business Security
- Classifications
- CWE-59, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 8, 2022CVE 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?
Compare these published version ranges with your installed build and any vendor patches.
- 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.
Weakness, pattern, technique
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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