Local privilege escalation via insecure file permissions
Published Dec 21, 2021 · Updated Sep 17, 2024
Improper privilege management in Mesa Labs AmegaView 3.0 and earlier allows local users to escalate privileges via insecure file permissions. The device assigns overly broad permissions to security-critical files, allowing a low-privilege account to modify or replace resources used by higher-privilege processes. Exploitation requires local access to the appliance; successful abuse can compromise confidentiality, integrity, and availability through elevated privileges.
Summary
What happened
Improper privilege management in Mesa Labs AmegaView 3.0 and earlier allows local users to escalate privileges via insecure file permissions. The device assigns overly broad permissions to security-critical files, allowing a low-privilege account to modify or replace resources used by higher-privilege processes. Exploitation requires local access to the appliance; successful abuse can compromise confidentiality, integrity, and availability through elevated privileges.
The record
- CVE
- CVE-2021-27445
- Published
- Dec 21, 2021
- Updated
- Sep 17, 2024
- Vendor
- Mesa Laboratories
- Product
- AmegaView
- Classifications
- CWE-732, CWE-269, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 21, 2021CVE publishedPublication date reported by the CVE source.
- Sep 17, 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=unspecified <=3.0
What conditions does exploitation require?
What is affected?
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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