Valve Games Were Vulnerable to Software Exploits When Your Character Died

The One Up Security firm, who must be very new because this is their only published research article and their domain name appears to have been registered about 8 months ago, has released information on a vulnerability that Valve patched in their Source engine back in June.

It’s an amusing vulnerability because the exploitation of it occurs when your character dies on a game server, and your character model’s ragdoll is replaced with an exploitative payload that the researcher was able to exploit because certain security flags weren’t set on portions of Steam. This is what you see in action when you watch One Up Security’s video embedded above.