Indian Scout Bobber 2025 Infotainment Digital Round skips PIN entry when WCM is silent at boot
Incorrect behavior order in the Infotainment / Digital Round display of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker to bypass the PIN entry screen. The Infotainment uses presence of Wireless Control Module (WCM) traffic during its boot window as a proxy for whether an immobilizer is fitted; if no WCM messages are observed, it skips the PIN entry screen and shows the normal user interface. An attacker who silences the WCM during the boot window — for example via a separately tracked CAN bus-off technique — can present a fully unlocked Infotainment despite the PIN never being entered. Specific timing and protocol details have been withheld pending vendor remediation.
Fail secure on WCM absence: if the Infotainment cannot positively identify a WCM via signed challenge-response with a per-boot nonce, default to a locked screen indicating WCM service required, rather than skipping the PIN entry.
Configurations
Workarounds
Exploits
Credits
finder
Scott Sheahan, Rustic Security LLC
Timeline
Event
Date
Reported to Indian Motorcycle by Rustic Security LLC (responsible disclosure)
2025-03-26 00:00:00
Event: Reported to Indian Motorcycle by Rustic Security LLC (responsible disclosure)