Another Researcher Hit With Threat Of German Anti-Hacking Law

German software firm warns researcher who disclosed a vulnerability in its software and offered his help

Another security researcher is facing possible legal action based on the 3-year-old hacker clause in a German law that basically forbids anyone from selling and distributing hacking tools.
An independent researcher who goes by Acidgen was recently threatened with a lawsuit by a German software company that he alerted about a buffer overflow vulnerability he discovered in the vendors music application. Acidgen, who is based in Sweden, found a stack buffer overflow bug in Magix AGs Music Maker 16 software (version 16.0.2.4) and promptly passed the information to Magix. After several friendly email exchanges with the vendor in which Acidgen also provided Magix with what he describes as a nonharmful proof-of-concept (PoC) to demonstrate how the flaw could be exploited and his plans to publish the flaw and PoC after it was patched, the researcher received a not-so friendly email from companys lawyer threatening a lawsuit for alleged extortion for his plans to release a proof-of-concept on the flaw.
It came out of nowhere, Acidgen says of the legal threat. He was awaiting word on when the vendor would be issuing a patch: Then I get back a really threatening lawsuit letter that they are going to press charges for extortion for [the] exploit code, says Acidgen, who says the PoC he gave Magix is a benign one that just starts up the Windows Calculator.
Magix also told him it was alerting antivirus companies of new viruses that would spread due to his PoC, he says.
Acidgen isnt the only researcher recently to be threatened by the German law: German security researcher Thomas Roth was served with an injunction in January just prior to his talk at Black Hat DC in response to his plans to release an open-source tool at the conference. The tool uses Amazons GPU processing services to crack SHA1-based passwords at high speeds.
His apartment was raided, his bank account frozen, and he had to refrain from releasing his tool during Black Hat
.
Roths legal troubles came after a German newspaper mistranslated English-speaking news reports on his research. The German newspaper incorrectly reported that Roth had said he would be turning a profit as a sort of a hacker-for-hire. That led to a German telecommunications firm taking legal action against the researcher: They misunderstood that I was getting money for doing this ... and illegally breaking into networks, says Roth, a researcher and consultant for Lanworks AG.
Roth spent the next few months clearing his name and calling out the German newspaper for its inaccurate report and the intent of his tool. The German telecommunications firm that went after Roth accused him of illegally breaking into wireless networks and planning to release rainbow tables to be used for hacking into company networks. He was eventually able to clear up the misunderstanding, and he finally released his tool last month.
Meanwhile, the case against Acidgen doesnt appear to have legs, either, says one security expert knowledgeable about the German law. This was Magixs legal department doing some sabre-rattling, he says. Its usually the first thing that a lawyer does: write a letter with an official letterhead and see if the other side backs down.
But Acidgen says he has no intention of backing down. He
disclosed the Magix vulnerability
yesterday, but stopped short of publishing the PoC. Hes still hopeful that Magix will either patch the flaw or provide him with a date when they plan to do so.
His disclosure steps were typical of most researchers -- alerting the vendor of the flaw and asking for its patch time frame. But what might have helped trigger Magixs legal response was Acidgens offer to help the vendor further: he mentioned that he could fuzz for more vulnerabilities for free. I stated and made clear that Im not trying to extort them or make money, he says.
In the letter to Acidgen from Magixs attorney, the attorney notes that Magix appreciates the researchers sharing his finding with the company, and that it will use the information to improve its products.
The next paragraph of the letter takes on a different tone: On the other hand MAGIX does not appreciate that you are intending to publicly release the Exploit and to cause irreparable harm. As you maybe aware it is illegal to release software which is intended to commit computer sabotage (e.g. Sec. 202c I No. 2 German Criminal Law). In addition this announcement together with your offering to have the vulnerability fixed by your company may be considered as an attempted extortion. You may rest assured that MAGIX will enter into all necessary and appropriate legal steps in this regard. In addition MAGIX will inform manufacturers of antivirus software that there might be a new virus based on your code, the attorney wrote.
Magix had not responded to press inquiries as of this posting.
Acidgen thinks the whole thing could be a misunderstanding of how security researchers operate. He says he had no intention of hurting Magix or the security of its clients: Thats why he is still awaiting a fix before releasing the PoC.
His case is another example of where the German hacker law is vague and broad, experts say. The law is very broadly phrased, and any piece of software can really fall under the law, notes the security expert knowledgeable about the hacker law. What it does help against is the openly selling of tools from Germany. But even then, its in the way its advertised.
Its all about intent. Evident intent is everything, he says. If you advertise something for illegal purposes, youre immediately operating illegally under the law, he says. Even offering Windows XP for sale for hacking purposes would be considered illegal. Under the law, intent is everything, not the actual capabilities of the software.
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Another Researcher Hit With Threat Of German Anti-Hacking Law