Local privilege escalation via unchecked reparse points
Published Aug 6, 2024 · Updated Aug 6, 2024
Local privilege escalation in Zscaler Client Connector for Windows before 4.2.0.190 allows local users to gain elevated privileges. The autoupdater copies individual log files without checking whether a source path is a Windows reparse point, allowing a crafted link to redirect a privileged file operation. Exploitation requires low-privileged local access and control of the relevant log-file path; the published record does not identify the resulting privilege level.
Summary
What happened
Local privilege escalation in Zscaler Client Connector for Windows before 4.2.0.190 allows local users to gain elevated privileges. The autoupdater copies individual log files without checking whether a source path is a Windows reparse point, allowing a crafted link to redirect a privileged file operation. Exploitation requires low-privileged local access and control of the relevant log-file path; the published record does not identify the resulting privilege level.
The record
- CVE
- CVE-2024-23458
- Published
- Aug 6, 2024
- Updated
- Aug 6, 2024
- Vendor
- Zscaler
- Product
- Zscaler Client Connector
- Classifications
- CWE-346, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 6, 2024CVE publishedPublication date reported by the CVE source.
- Aug 6, 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=0 <4.2.0.190
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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