Not Again! Uninstaller for Other Sony DRM Also Opens Security Hole

Not Again! Uninstaller for Other Sony DRM Also Opens Huge Security Hole

I have good news and bad news about Sony's other CD DRM technology, the SunnComm MediaMax system. (For those keeping score at home, Ed and I have written a lot recently about Sony's XCP copy protection technology, but this post is about a separate system that Sony ships on other CDs.)

I wrote last weekend about SunnComm's spyware-like behavior. Sony CDs protected with their technology automatically install several megabytes of files without any meaningful notice or consent, silently phone home every time you play a protected album, and fail to include any uninstall option.

Here's the good news: As several readers have pointed out, SunnComm will provide a tool to uninstall their software if users pester them enough. Typically this requires at least two rounds of emails with the company's support staff.

Now the bad news: It turns out that the web-based uninstaller SunnComm provides opens up a major security hole very similar to the one created by the web-based uninstaller for Sony's other DRM, XCP, that we announced a few days ago. I have verified that it is possible for a malicious web site to use the SunnComm hole to take control of PCs where the uninstaller has been used. In fact, the the SunnComm problem is easier to exploit than the XCP uninstaller flaw.

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Monty Solomon
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