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Sony BMG copy protection rootkit scandal

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Screenshot of the Sony CD audio player, playing Switchfoot's fifth studio album Nothing Is Sound.

In 2005 it was revealed that the implementation of copy protection measures on about 22 million CDs distributed by Sony BMG installed one of two pieces of software that provided a form of digital rights management (DRM) by modifying the operating system to interfere with CD copying. Neither program could easily be uninstalled, and they created vulnerabilities that were exploited by unrelated malware. One of the programs would install and "phone home" with reports on the user's private listening habits, even if the user refused its end-user license agreement (EULA), while the other was not mentioned in the EULA at all. Both programs contained code from several pieces of copylefted free software in an apparent infringement of copyright, and configured the operating system to hide the software's existence, leading to both programs being classified as rootkits.

Sony BMG initially denied that the rootkits were harmful. It then released an uninstaller for one of the programs that merely made the program's files invisible while also installing additional software that could not be easily removed, collected an email address from the user and introduced further security vulnerabilities.

Following public outcry, government investigations and class-action lawsuits in 2005 and 2006, Sony BMG partially addressed the scandal with consumer settlements, a recall of about 10% of the affected CDs and the suspension of CD copy-protection efforts in early 2007.

Background

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In August 2000, statements by Sony Pictures Entertainment U.S. senior vice president Steve Heckler foreshadowed the events of late 2005. Heckler told attendees at the Americas Conference on Information Systems: "The industry will take whatever steps it needs to protect itself and protect its revenue streams ... It will not lose that revenue stream, no matter what ... Sony is going to take aggressive steps to stop this. We will develop technology that transcends the individual user. We will firewall Napster at source – we will block it at your cable company. We will block it at your phone company. We will block it at your ISP. We will firewall it at your PC ... These strategies are being aggressively pursued because there is simply too much at stake."[1]

In Europe, BMG created a minor scandal in 2001 when it released Natalie Imbruglia's second album White Lilies Island without warning labels stating that the CD contained copy protection.[2][3] The CDs were eventually replaced.[2][3] BMG and Sony both released copy-protected versions of certain releases in certain markets in late 2001,[4][5] and a late 2002 report indicated that all BMG CDs sold in Europe would contain some form of copy protection.[6]

Copy-protection software

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The two pieces of copy-protection software at issue in the 2005–2007 scandal were included on over 22 million CDs[7] marketed by Sony BMG, the record company formed by the 2004 merger of Sony and BMG's recorded music divisions. About two million of those CDs,[7] spanning 52 titles, contained First 4 Internet (F4I)'s Extended Copy Protection (XCP), which was installed on Microsoft Windows systems after the user accepted the EULA, which made no mention of the software. The remaining 20 million CDs,[7] spanning 50 titles,[8] contained SunnComm's MediaMax CD-3, which was installed on either Microsoft Windows or macOS systems after the user was presented with the EULA, regardless of whether the user accepted it. However, macOS prompted the user for confirmation when the software attempted to modify the OS, whereas Windows did not.

XCP rootkit

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Main article: Extended Copy Protection

The scandal began on October 31, 2005, when Winternals researcher Mark Russinovich posted to his blog a detailed description and technical analysis of F4I's XCP software that he determined had been recently installed on his computer by a Sony BMG music CD. Russinovich compared the software to a rootkit because of its surreptitious installation and efforts to hide its existence. He noted that the EULA does not mention the software, and he charged that the software is illegitimate and that digital rights management had "gone too far".[9]

Anti-virus firm F-Secure concurred: "Although the software isn't directly malicious, the used rootkit hiding techniques are exactly the same used by malicious software to hide. The DRM software will cause many similar false alarms with all AV software that detect rootkits. ... Thus it is very inappropriate for commercial software to use these techniques."[10] After public pressure, Symantec[11] and other anti-virus vendors included detection for the rootkit in their products as well, and Microsoft announced that it would include detection and removal capabilities in its security patches.[12]

Russinovich discovered numerous problems with XCP:

  • It creates security holes that can be exploited by malicious software such as worms or viruses.
  • It constantly runs in the background and excessively consumes system resources, slowing down the user's computer, regardless of whether a protected CD is playing.
  • It employs unsafe procedures to start and stop, which could lead to system crashes.
  • It has no uninstaller, and is installed in such a way that inexpert attempts to uninstall it can cause the operating system to fail to recognize existing drives.

Soon after Russinovich's first post, several trojans and worms exploiting XCP's security holes appeared.[13] Some even used the vulnerabilities to cheat in online games.[14]

Sony BMG quickly released software to remove the rootkit component of XCP from affected Microsoft Windows computers,[15] but after Russinovich analyzed the utility, he reported in his blog that it only exacerbated the security problems and raised further concerns about privacy.[16] Russinovich noted that the removal program merely unmasked the hidden files installed by the rootkit but did not actually remove the rootkit. He also reported that it installed additional software that could not be uninstalled. In order to download the uninstaller, he found that it was necessary to provide an e-mail address (which the Sony BMG Privacy Policy implied was added to various bulk e-mail lists) and to install an ActiveX control containing backdoor methods (marked as "safe for scripting" and thus prone to exploits).[17][18] Microsoft later issued a killbit for the ActiveX control.

On November 18, 2005, Sony BMG provided a "new and improved" removal tool to remove the rootkit component of XCP from affected Microsoft Windows computers.

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Product recall

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On November 15, 2005, vnunet.com announced[19] that Sony BMG was backing out of its copy-protection software, recalling unsold CDs from all stores and allowing consumers to exchange affected CDs for versions without the software. The Electronic Frontier Foundation compiled a partial list of CDs with XCP.[20] Sony BMG maintained that "there were no security risks associated with the anti-piracy technology" despite numerous virus and malware reports. On November 16, 2005, US-CERT, part of the United States Department of Homeland Security, issued an advisory on XCP DRM. It said that XCP uses rootkit technology to hide certain files from the user and that the technique is a security threat to users. They also said that one of the uninstallation options provided by Sony BMG introduces further vulnerabilities. US-CERT advised: "Do not install software from sources that you do not expect to contain software, such as an audio CD."[21]

Sony BMG announced that it had instructed retailers to remove any unsold music discs containing the software from their shelves.[22] Internet-security expert Dan Kaminsky estimated that XCP was in use on more than 500,000 networks.[23]

CDs with XCP technology can be identified by the letters "XCP" printed on the back cover of the jewel case for the CD according to SonyBMG's XCP FAQ.[24]

On November 18, 2005, Reuters reported that Sony BMG would exchange affected unsecure CDs for new unprotected discs as well as unprotected MP3 files.[25] As a part of the swap program, consumers could mail their XCP-protected CDs to Sony BMG and receive an unprotected disc via return mail.

On November 29, investigators for New York attorney general Eliot Spitzer found that, despite the recall of November 15, Sony BMG CDs with XCP were still for sale at some New York City music retail outlets. Spitzer said: "It is unacceptable that more than three weeks after this serious vulnerability was revealed, these same CDs are still on shelves, during the busiest shopping days of the year, [and] I strongly urge all retailers to heed the warnings issued about these products, pull them from distribution immediately, and ship them back to Sony."[26]

The next day, Massachusetts attorney general Tom Reilly announced that Sony BMG CDs with XCP were still available in Boston despite the Sony BMG recall of November 15.[27] He advised consumers not to purchase the Sony BMG CDs with XCP and said that he was conducting an investigation of Sony BMG.

Sony BMG's website offered consumers a link to "Class Action Settlement Information Regarding XCP And MediaMax Content Protection"[28] with online claim filing and links to software updates and uninstallers. The deadline for submitting a claim was June 30, 2007. The website offered an explanation of the events as well as a list of all affected CDs.[29]

Texas state action

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On November 21, 2005, Texas attorney general Greg Abbott sued Sony BMG.[30] The suit was the first filed by a U.S. state and was also the first filed under the state's 2005 spyware law. It alleged that the company surreptitiously installed the spyware on millions of CDs.

On December 21, 2005, Abbott added new allegations to the lawsuit,[31] claiming that MediaMax violated the state's spyware and deceptive trade practices laws because the MediaMax software would be installed on a computer even if the user declined the license agreement authorizing the action. Abbott stated: "We keep discovering additional methods Sony used to deceive Texas consumers who thought they were simply buying music", and "Thousands of Texans are now potential victims of this deceptive game Sony played with consumers for its own purposes." In addition to violations of the Consumer Protection Against Computer Spyware Act of 2005, which allowed for civil penalties of $100,000 for each violation of the law, the alleged violations added in the updated lawsuit carried maximum penalties of $20,000 per violation.[32][33] Sony was ordered to pay $750,000 in legal fees to Texas, accept customer returns of affected CDs, place a conspicuous detailed notice on its homepage, make "keyword buys" to alert consumers by advertising with Google, Yahoo! and MSN, pay up to $150 per damaged computer and agree to other remedies. Sony BMG also had to agree that it would not bring any claim that the legal settlement in any way constitutes the approval of the court.[34]

New York and California class-action suits

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Class-action suits were filed against Sony BMG in New York and California.[35]

On December 30, 2005, the New York Times reported that Sony BMG had reached a tentative settlement of the lawsuits, proposing two ways of compensating consumers who had purchased the affected CDs.[36] According to the proposed settlement, those who had purchased an XCP CD would be paid $7.50 per purchased recording and provided the opportunity to download either a free album or three additional albums from a limited list of recordings if they elected to forgo the cash incentive. District judge Naomi Reice Buchwald entered an order tentatively approving the settlement on January 6, 2006.

The settlement was designed to compensate those whose computers were infected but were not otherwise damaged. Those who had incurred damages not addressed in the class-action suit were free to opt out of the settlement and pursue their own litigation.

A fairness hearing was held on May 22, 2006, in New York. Claims were required to be submitted by December 31, 2006. Class members who wished to be excluded from the settlement were required to have filed before May 1, 2006. Those who remained in the settlement could attend the fairness hearing at their own expense and speak on their own behalf or be represented by an attorney.

Other actions

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In Italy, ALCEI [it] (an association similar to EFF) also reported the rootkit to the Financial Police, asking for an investigation under various computer crime allegations, along with a technical analysis of the rootkit.[37][38]

The U.S. Department of Justice made no comment on whether it would take any criminal action against Sony. However, Stewart Baker of the Department of Homeland Security publicly admonished Sony, stating, "it's your intellectual property—it's not your computer."[39]

On November 21, the EFF announced that it was also pursuing a lawsuit over both XCP and the SunnComm MediaMax DRM technology. The EFF lawsuit also involved issues concerning the Sony BMG end-user license agreement.

It was reported on December 24, 2005, that Florida attorney general Charlie Crist was investigating Sony BMG spyware.[40]

On January 30, 2007, the U.S. Federal Trade Commission (FTC) announced a settlement with Sony BMG on charges that the CD copy protection had violated federal law[41]—Section 5(a) of the Federal Trade Commission Act, 15 USC 45(a)—by engaging in unfair and deceptive business practices.[42] The settlement required Sony BMG to reimburse consumers up to $150 to repair damage that resulted directly from its attempts to remove the software installed without their consent.[41] The settlement also required them to provide clear and prominent disclosure on the packaging of future CDs of any limits on copying or restrictions on the use of playback devices, and the company was prohibited from installing content-protection software without obtaining consumers' authorization.[41] FTC chairwoman Deborah Platt Majoras added: "Installations of secret software that create security risks are intrusive and unlawful. Consumers' computers belong to them, and companies must adequately disclose unexpected limitations on the customer use of their products so consumers can make informed decisions regarding whether to purchase and install that content."[43][44]

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Main article: Extended Copy Protection § Copyright violations

Researchers found that Sony BMG and the makers of XCP also apparently infringed copyright by failing to adhere to the licensing requirements of various pieces of free and open-source software that was used in the program,[45][46] including the LAME MP3 encoder,[47] mpglib,[48] FAAC,[49] id3lib,[50] mpg123 and the VLC media player.[51]

In January 2006, the developers of LAME posted an open letter stating that they expected "appropriate action" by Sony BMG, but that the developers had no plans to investigate or take action over the apparent violation of LAME's source-code license.[52]

Company and press reports

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Russinovich's report was discussed on popular blogs almost immediately following its release.[53]

NPR was one of the first major news outlets to report on the scandal on November 4, 2005. Thomas Hesse, Sony BMG's president of global digital business, said: "Most people, I think, don't even know what a rootkit is, so why should they care about it?"[54]

In a November 7, 2005 article, vnunet.com summarized Russinovich's findings[55] and urged consumers to temporarily avoid purchasing Sony BMG music CDs. The following day, The Boston Globe classified the software as spyware, and Computer Associates' eTrust Security Management unit VP Steve Curry confirmed that the rootkit communicates personal information from consumers' computers (the CD being played and the user's IP address) to Sony BMG.[56] The methods used by the software to avoid detection were likened to those used by data thieves.

On November 8, 2005, Computer Associates classified Sony BMG's software as spyware and provided tools for its removal.[57] Russinovich said: "This is a step they should have taken immediately."[58]

The first virus to exploit Sony BMG's stealth technology to make malicious files invisible to both the user and antivirus programs surfaced on November 10, 2005.[59] One day later, Yahoo! News announced that Sony BMG had suspended further distribution of the controversial technology.[citation needed]

ZDNet News wrote: "The latest risk is from an uninstaller program distributed by SunnComm Technologies, a company that provides copy protection on other Sony BMG releases." The uninstall program obeys commands sent to it allowing others "to take control of PCs where the uninstaller has been used."[60]

On December 6, 2005, Sony BMG revealed that 5.7 million CDs spanning 27 titles were shipped with MediaMax 5 software. The company announced the availability of a new software patch to prevent a potential security breach in consumers' computers.

Sony BMG in Australia issued a press release indicating that no Sony BMG titles manufactured in Australia contained copy protection.[61]

References

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Sources

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