Local root execution via writable session cookies
Published Mar 7, 2020 · Updated Aug 4, 2024
Local privilege escalation in Wing FTP Server 6.2.5 allows local users to execute Lua commands as root through a stolen admin session. The server writes Lua session artifacts named for cookie values into session and session_admin with world-readable and world-writable permissions. Exploitation requires an active administrative session; a local user can rewrite its IP binding, reuse the cookie, and reach the root-running Lua interpreter.
Summary
What happened
Local privilege escalation in Wing FTP Server 6.2.5 allows local users to execute Lua commands as root through a stolen admin session. The server writes Lua session artifacts named for cookie values into session and session_admin with world-readable and world-writable permissions. Exploitation requires an active administrative session; a local user can rewrite its IP binding, reuse the cookie, and reach the root-running Lua interpreter.
The record
- CVE
- CVE-2020-9470
- Published
- Mar 7, 2020
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-732, T1539
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 7, 2020CVE 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Wing FTP Server 6.2.5 Privilege Escalationfunctional · demonstrated
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Technologies
Your stack
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Your stack
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