Local privilege escalation via writable web files
Published Sep 11, 2023 · Updated Sep 26, 2024
Incorrect default permissions in TSplus Remote Access 16.0.2.14 and earlier allow local users to gain elevated privileges. The installed ACLs grant Everyone Full Control over files and directories beneath %PROGRAMFILES(X86)%\TSplus\Clients\www, allowing HTML or JavaScript changes and replacement of distributed executables. A local account with write access is required, and privilege gain depends on a privileged process or user executing a replaced file.
Summary
What happened
Incorrect default permissions in TSplus Remote Access 16.0.2.14 and earlier allow local users to gain elevated privileges. The installed ACLs grant Everyone Full Control over files and directories beneath %PROGRAMFILES(X86)%\TSplus\Clients\www, allowing HTML or JavaScript changes and replacement of distributed executables. A local account with write access is required, and privilege gain depends on a privileged process or user executing a replaced file.
The record
- CVE
- CVE-2023-31067
- Published
- Sep 11, 2023
- Updated
- Sep 26, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-276, T1222.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 11, 2023CVE publishedPublication date reported by the CVE source.
- Sep 26, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- TSplus 16.0.2.14 Remote Access Insecure Files and Folders Permissionsproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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