pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $(id>/tmp/rce) in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID (some controllers allow this) can inject the payload at --add-device time. Also, userName from the XML config is passed to os.system() in pamusb-agent, which invokes a shell. This vulnerability is fixed in 0.8.7.
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History
Wed, 27 May 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $(id>/tmp/rce) in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID (some controllers allow this) can inject the payload at --add-device time. Also, userName from the XML config is passed to os.system() in pamusb-agent, which invokes a shell. This vulnerability is fixed in 0.8.7. | |
| Title | pam_usb: Shell injection via device UUID and username in pamusb-conf and pamusb-agent | |
| Weaknesses | CWE-78 CWE-88 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-27T20:24:23.131Z
Reserved: 2026-05-07T17:07:09.318Z
Link: CVE-2026-44712
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Status : Received
Published: 2026-05-27T21:16:18.213
Modified: 2026-05-27T21:16:18.213
Link: CVE-2026-44712
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