(Pwn2Own) Lexmark MC3224i Unprotected API Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to remove authentication on affected installations of Lexmark MC3224i printers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within URL handling. The issue results from the lack of proper restriction to a URL. An attacker can leverage this vulnerability to execute code in the context of root.
Additional Details
Lexmark has issued an update to correct this vulnerability. More details can be found at:
https://publications.lexmark.com/publications/security-alerts/CVE-2021-44736.pdf
Disclosure Timeline
- 2021-11-08 - Vulnerability reported to vendor
- 2022-02-15 - Coordinated public release of advisory
Credit
David BERARD (@_p0ly_), Vincent FARGUES (@Karion_), Thomas IMBERT (@masthoon), from @Synacktiv
