Terminal data theft and injection via world-writable PTY
Published May 26, 2025 · Updated May 27, 2025
TTY permission weakness in GNU Screen on affected SUSE Linux products allows local users to read and inject terminal data. Attach() changes the caller's PTY to mode 0666 during multi-user attachment, creating a race and leaving unsafe permissions on some exit paths. Exploitation requires low-privileged local access and a Screen attach attempt; attackers can capture secrets or inject terminal input without interrupting service.
Summary
What happened
TTY permission weakness in GNU Screen on affected SUSE Linux products allows local users to read and inject terminal data. Attach() changes the caller's PTY to mode 0666 during multi-user attachment, creating a race and leaving unsafe permissions on some exit paths. Exploitation requires low-privileged local access and a Screen attach attempt; attackers can capture secrets or inject terminal input without interrupting service.
The record
- CVE
- CVE-2025-46802
- Published
- May 26, 2025
- Updated
- May 27, 2025
- Vendor
- NeuVector
- Product
- SUSE Linux Enterprise High Performance Computing
- Classifications
- CWE-732, T1056.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 26, 2025CVE publishedPublication date reported by the CVE source.
- May 27, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=? <4.6.2-150000.5.8.1
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
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
- SUSE TTY hijacking reproducerproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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