Terminal output injection via unsanitized argv
Published Mar 27, 2024 · Updated Jul 14, 2026
Terminal escape injection in util-linux wall 2.40 and earlier allows local users to alter other users' terminal output through argv. In term-utils/wall.c, the argv message path writes each argument with fputs instead of the control-character-filtering fputs_careful used for stdin. Exposure requires a privileged wall installation and enabled terminal messages; crafted sequences can spoof terminal content and, in environment-dependent scenarios, capture credentials.
Summary
What happened
Terminal escape injection in util-linux wall 2.40 and earlier allows local users to alter other users' terminal output through argv. In term-utils/wall.c, the argv message path writes each argument with fputs instead of the control-character-filtering fputs_careful used for stdin. Exposure requires a privileged wall installation and enabled terminal messages; crafted sequences can spoof terminal content and, in environment-dependent scenarios, capture credentials.
The record
- CVE
- CVE-2024-28085
- Published
- Mar 27, 2024
- Updated
- Jul 14, 2026
- Vendor
- Siemens
- Product
- RUGGEDCOM ROX RX1500
- Classifications
- CWE-150, T1056
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 27, 2024CVE publishedPublication date reported by the CVE source.
- Jul 14, 2026Record 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 <V2.17.0
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
- WallEscape proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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