The statement and the policy change from Valve came two days after security researcher Vasily Kravets, an independent researcher from Moscow, received an email telling him that Valve’s security team would no longer receive his vulnerability reports through the HackerOne bug-reporting service. Valve turned Kravets away after he reported a steam vulnerability that allowed hackers who already had a toe-hold on a vulnerable computer to burrow into privileged parts of an operating system. Valve initially told Kravets such vulnerabilities were out of scope and gave no indication that the one Vasily reported would be fixed. The company later publicly denied that the issue was a vulnerability by incorrectly claiming that the exploit required hackers to have physical access to a vulnerable computer. The company went so far as to dispute the vulnerability in the advisory issued by the National Institute of Standards and Technology.
An anonymous reader quotes a report from Ars Technica: In an attempt to quell a controversy that has raised the ire of white-hat hackers, the maker of the Steam online game platform said on Thursday it made a mistake when it turned away a researcher who recently reported two separate vulnerabilities. In its statement, Valve Corporation references HackerOne, the reporting service that helps thousands of companies receive and respond to vulnerabilities in their software or hardware. Valve’s new HackerOne program rules specifically provide that “any case that allows malware or compromised software to perform a privilege escalation through Steam, without providing administrative credentials or confirming a UAC dialog, is in scope. Any unauthorized modification of the privileged Steam Client Service is also in scope.”