Root privilege escalation via pmpost symlink following
Published Sep 19, 2024 · Updated Nov 20, 2025
Local privilege escalation in Performance Co-Pilot allows local users controlling the pcp account to write files as root via pmpost. pmpost opens /var/log/pcp/NOTICES without O_NOFOLLOW, follows a pcp-created symlink when invoked by root, and writes the supplied message to the link target. Control of the pcp account is required; the flaw permits arbitrary file creation or corruption and can transfer ownership of newly created files to pcp.
Summary
What happened
Local privilege escalation in Performance Co-Pilot allows local users controlling the pcp account to write files as root via pmpost. pmpost opens /var/log/pcp/NOTICES without O_NOFOLLOW, follows a pcp-created symlink when invoked by root, and writes the supplied message to the link target. Control of the pcp account is required; the flaw permits arbitrary file creation or corruption and can transfer ownership of newly created files to pcp.
The record
- CVE
- CVE-2024-45770
- Published
- Sep 19, 2024
- Updated
- Nov 20, 2025
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8.6 Telecommunications Update Service
- Classifications
- CWE-59, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 19, 2024CVE publishedPublication date reported by the CVE source.
- Nov 20, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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