(Pwn2Own) Alpine Halo9 UPDM_wemCmdCreatSHA256Hash Command Injection Remote Code Execution Vulnerability
June 21st, 2024
Vulnerability Details
This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Alpine Halo9 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the UPDM_wemCmdCreatSHA256Hash function. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.
Additional Details
Alpine conducted a Threat Assessment and Remediation Analysis (TARA) in accordance with ISO21434, and concluded that the vulnerability is classified as "Sharing the Risk". Alpine states that they will continue to use the current software without a releasing patch.
Disclosure Timeline
- 2024-02-01 - Vulnerability reported to vendor
- 2024-06-21 - Coordinated public release of advisory
- 2024-08-15 - Advisory Updated
Credit
Anonymous
