Secure boot bypass and memory extraction can be achieved on Neato Botvac Connected 2.2.0 devices. During startup, the AM335x secure boot feature decrypts and executes firmware. Secure boot can be bypassed by starting with certain commands to the USB serial port. Although a power cycle occurs, this does not completely reset the chip: memory contents are still in place. Also, it restarts into a boot menu that enables XMODEM upload and execution of an unsigned QNX IFS system image, thereby completing the bypass of secure boot. Moreover, the attacker can craft custom IFS data and write it to unused memory to extract all memory contents that had previously been present. This includes the original firmware and sensitive information such as Wi-Fi credentials.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2019-02-23T14:00:00
Updated: 2024-08-05T12:12:27.379Z
Reserved: 2019-02-23T00:00:00
Link: CVE-2018-20785
Vulnrichment
No data.
NVD
Status : Modified
Published: 2019-02-23T14:29:00.427
Modified: 2024-11-21T04:02:10.270
Link: CVE-2018-20785
Redhat
No data.