CVE-2018-5399: The Auto-Maskin DCU 210E firmware contains an undocumented Dropbear SSH server, v2015.55, configured to listen on Port 22 while the DCU is running and is configured with a hard-coded credentials
First published: Mon Oct 08 2018(Updated: )
The Auto-Maskin DCU 210E firmware contains an undocumented Dropbear SSH server, v2015.55, configured to listen on Port 22 while the DCU is running. The Dropbear server is configured with a hard-coded user name and password combination of root / amroot. The server is configured to use password only authentication not cryptographic keys, however the firmware image contains an RSA host-key for the server. An attacker can exploit this vulnerability to gain root access to the Angstrom Linux operating system and modify any binaries or configuration files in the firmware. Affected releases are Auto-Maskin DCU-210E RP-210E: Versions prior to 3.7 on ARMv7.
Credit: cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Auto-Maskin DCU-210E firmware | <3.7 | |
| Auto-Maskin DCU 210E | ||
| Auto-Maskin RP 210E firmware | <3.7 | |
| Auto-Maskin RP 210E firmware |
Remedy
End-users should log-in via the SSH server and remove it as a service, or change the hard-coded password to SP 800-63B standards.
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Reference Links
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