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From | To | Subject | Date/Time | |||
Sean Rima | All | CRYPTO-GRAM, August 15, 2024 Part 3 |
September 23, 2024 9:22 PM * |
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Some background: The CSRB was established in 2021, by executive order, to provide an independent analysis and assessment of significant cyberattacks against the United States. The goal was to pierce the corporate confidentiality that often surrounds such attacks and to provide the entire security community with lessons and recommendations. The more we all know about what happened, the better we can all do next time. It’s the same thinking that led to the formation of the National Transportation Safety Board, but for cyberattacks and not plane crashes. But the board immediately failed to live up to its mission. It was founded in response to the Russian cyberattack on the U.S. known as SolarWinds. Although it was specifically tasked with investigating that incident, it did not -- for reasons that remain unclear. So far, the board has published three reports. They offered only simplistic recommendations. In the first investigation, on Log4J, the CSRB exhorted companies to patch their systems faster and more often. In the second, on Lapsus$, the CSRB told organizations not to use SMS-based two-factor authentication (it’s vulnerable to SIM-swapping attacks). These two recommendations are basic cybersecurity hygiene, and not something we need an investigation to tell us. The most recent report -- on China’s penetration of Microsoft -- is much better. This time, the CSRB gave us an extensive analysis of Microsoft’s security failures and placed blame for the attack’s success squarely on their shoulders. Its recommendations were also more specific and extensive, addressing Microsoft’s board and leaders specifically and the industry more generally. The report describes how Microsoft stopped rotating cryptographic keys in early 2021, reducing the security of the systems affected in the hack. The report suggests that if the company had set up an automated or manual key rotation system, or a way to alert teams about the age of their keys, it could have prevented the attack on its systems. The report also looked at how Microsoft’s competitors -- think Google, Oracle, and Amazon Web Services -- handle this issue, offering insights on how similar companies avoid mistakes. Yet there are still problems, with the report itself and with the environment in which it was produced. First, the public report cites a large number of anonymous sources. While the report lays blame for the breach on Microsoft’s lax security culture, it is actually quite deferential to Microsoft; it makes special mention of the company’s cooperation. If the board needed to make trades to get information that would only be provided if people were given anonymity, this should be laid out more explicitly for the sake of transparency. More importantly, the board seems to have conflict-of-interest issues arising from the fact that the investigators are corporate executives and heads of government agencies who have full-time jobs. Second: Unlike the NTSB, the CSRB lacks subpoena power. This is, at least in part, out of fear that the conflicted tech executives and government employees would use the power in an anticompetitive fashion. As a result, the board must rely on wheedling and cooperation for its fact-finding. While the DHS press release said, “Microsoft fully cooperated with the Board’s review,” the next company may not be nearly as cooperative, and we do not know what was not shared with the CSRB. One of us, Tarah, recently testified on this topic before the U.S. Senate’s Homeland Security and Governmental Affairs Committee, and the senators asking questions seemed genuinely interested in how to fix the CSRB’s extreme slowness and lack of transparency in the two reports they’d issued so far. It’s a hard task. The CSRB’s charter comes from Executive Order 14208, which is why -- unlike the NTSB -- it doesn’t have subpoena power. Congress needs to codify the CSRB in law and give it the subpoena power it so desperately needs. Additionally, the CSRB’s reports don’t provide useful guidance going forward. For example, is the Microsoft report provides no mapping of the company’s security problems to any government standards that could have prevented them. In this case, the problem is that there are no standards overseen by NIST -- the organization in charge of cybersecurity standards -- for key rotation. It would have been better for the report to have said that explicitly. The cybersecurity industry needs NIST standards to give us a compliance floor below which any organization is explicitly failing to provide due care. The report condemns Microsoft for not rotating an internal encryption key for seven years, when its standard internally was four years. However, for the last several years, automated key rotation more on the order of once a month or even more frequently has become the expected industry guideline. A guideline, however, is not a standard or regulation. It’s just a strongly worded suggestion. In this specific case, the report doesn’t offer guidance on how often keys should be rotated. In essence, the CSRB report said that Microsoft should feel very bad about the fact that they did not rotate their keys more often -- but did not explain the logic, give an actual baseline of how often keys should be rotated, or provide any statistical or survey data to support why that timeline is appropriate. Automated certificate rotation such as that provided by public free service Let’s Encrypt has revolutionized encrypted-by-default communications, and expectations in the cybersecurity industry have risen to match. Unfortunately, the report only discusses Microsoft proprietary keys by brand name, instead of having a larger discussion of why public key infrastructure exists or what the best practices should be. More generally, because the CSRB reports so far have failed to generalize their findings with transparent and thorough research that provides real standards and expectations for the cybersecurity industry, we -- policymakers, industry leaders, the U.S. public -- find ourselves filling in the gaps. Individual experts are having to provide anecdotal and individualized interpretations of what their investigations might imply for companies simply trying to learn what their actual due care responsibilities are. It’s as if no one is sure whether boiling your drinking water or nailing a horseshoe up over the door is statistically more likely to decrease the incidence of cholera. Sure, a lot of us think that boiling your water is probably best, but no one is saying that with real science. No one is saying how long you have to boil your water for, or if any water sources more likely to carry illness. And until there are real numbers and general standards, our educated opinions are on an equal footing with horseshoes and hope. It should not be the job of cybersecurity experts, even us, to generate lessons from CSRB reports based on our own opinions. This is why we continue to ask the CSRB to provide generalizable standards which either are based on or call for NIST standardization. We want proscriptive and descriptive reports of incidents: see, for example, the UK GAO report for the WannaCry ransomware, which remains a gold standard of government cybersecurity incident investigation reports. We need and deserve more than one-off anecdotes about how one company didn’t do security well and should do it better in future. Let’s start treating cybersecurity like the equivalent of public safety and get some real lessons learned. This essay was written with Tarah Wheeler, and was published on Defense One. ** *** ***** ******* *********** ************* Problems with Georgia’s Voter Registration Portal [2024.08.07] It’s possible to cancel other people’s voter registrations: On Friday, four days after Georgia Democrats began warning that bad actors could abuse the state’s new online portal for canceling voter registrations, the Secretary of State’s Office acknowledged to ProPublica that it had identified multiple such attempts... ...the portal suffered at least two security glitches that briefly exposed voters’ dates of birth, the last four digits of their Social Security numbers and their full driver’s license numbers -- the exact information needed to cancel others’ voter registrations. I get that this is a hard problem to solve. We want the portal to be easy for people to use -- even non-tech-savvy people -- and hard for fraudsters to abuse, and it turns out to be impossible to do both without an overarching digital identity infrastructure. But Georgia is making it easy to abuse. EDITED TO ADD (8/14): There was another issue with the portal, making it easy to request cancellation of any Georgian’s registration. The elections director said that cancellations submitted this way wouldn’t have been processed because they didn’t have all the necessary information, which I guess is probably true, but it shows just how sloppy the coding is. ** *** ***** ******* *********** ************* People-Search Site Removal Services Largely Ineffective [2024.08.09] Consumer Reports has a new study of people-search site removal services, concluding that they don’t really work: As a whole, people-search removal services are largely ineffective. Private information about each participant on the people-search sites decreased after using the people-search removal services. And, not surprisingly, the removal services did save time compared with manually opting out. But, without exception, information about each participant still appeared on some of the 13 people-search sites at the one-week, one-month, and four-month intervals. We initially found 332 instances of information about the 28 participants who would later be signed up for removal services (that does not include the four participants who were opted out manually). Of those 332 instances, only 117, or 35%, were removed within four months. ** *** ***** ******* *********** ************* Taxonomy of Generative AI Misuse [2024.08.12] Interesting paper: “Generative AI Misuse: A Taxonomy of Tactics and Insights from Real-World Data”: Generative, multimodal artificial intelligence (GenAI) offers transformative potential across industries, but its misuse poses significant risks. Prior research has shed light on the potential of advanced AI systems to be exploited for malicious purposes. However, we still lack a concrete understanding of how GenAI models are specifically exploited or abused in practice, including the tactics employed to inflict harm. In this paper, we present a taxonomy of GenAI misuse tactics, informed by existing academic literature and a qualitative analysis of approximately 200 observed incidents of misuse reported between January 2023 and March 2024. Through this analysis, we illuminate key and novel patterns in misuse during this time period, including potential motivations, strategies, and how attackers leverage and abuse system capabilities across modalities (e.g. image, text, audio, video) in the wild. Blog post. Note the graphic mapping goals with strategies. ** *** ***** ******* *********** ************* On the Voynich Manuscript [2024.08.13] Really interesting article on the ancient-manuscript scholars who are applying their techniques to the Voynich Manuscript. No one has been able to understand the writing yet, but there are some new understandings: Davis presented her findings at the medieval-studies conference and published them in 2020 in the journal Manuscript Studies. She had hardly solved the Voynich, but she’d opened it to new kinds of investigation. If five scribes had come together to write it, the manuscript was probably the work of a community, rather than of a single deranged mind or con artist. Why the community used its own language, or code, remains a mystery. Whether it was a cloister of alchemists, or mad monks, or a group like the medieval Béguines -- a secluded order of Christian women -- required more study. But the marks of frequent use signaled that the manuscript served some routine, perhaps daily function. Davis’s work brought like-minded scholars out of hiding. In just the past few years, a Yale linguist named Claire Bowern had begun performing sophisticated analyses of the text, building on the efforts of earlier scholars and on methods Bowern had used with undocumented Indigenous languages in Australia. At the University of Malta, computer scientists were figuring out how to analyze the Voynich with tools for natural-language processing. Researchers found that the manuscript’s roughly 38,000 words -- and 9,000-word vocabulary -- had many of the statistical hallmarks of actual language. The Voynich’s most common word, whatever it meant, appeared roughly twice as often as the second-most-common word and three times as often as the third-commonest, and so on -- a touchstone of natural language known as Zipf’s law. The mix of word lengths and the ratio of unique words to total words were similarly language-like. Certain words, moreover, seemed to follow one another in predictable order, a possible sign of grammar. Finally, each of the text’s sections -- as defined by the drawings of plants, stars, bathing women, and so on -- had different sets of overrepresented words, just as one would expect in a real book whose chapters focused on different subjects. Spelling was the chief aberration. The Voynich alphabet -- if that’s what it was -- appeared to have a conventional 20-odd letters. But compared with known languages, too many of those letters repeated in the same order, both within words and across neighboring words, like a children’s rhyme. In some places, the spellings of adjacent words so converged that a single word repeated two or three times in a row. A rough English equivalent might be something akin to “She sells sea shells by the sea shore.” Another possibility, Bowern told me, was something like pig Latin, or the Yiddishism -- known as “shm-reduplication” -- that begets phrases such as fancy shmancy and rules shmules. ** *** ***** ******* *********** ************* Texas Sues GM for Collecting Driving Data without Consent [2024.08.14] Texas is suing General Motors for collecting driver data without consent and then selling it to insurance companies: From CNN: In car models from 2015 and later, the Detroit-based car manufacturer allegedly used technology to “collect, record, analyze, and transmit highly detailed driving data about each time a driver used their vehicle,” according to the AG’s statement. General Motors sold this information to several other companies, including to at least two companies for the purpose of generating “Driving Scores” about GM’s customers, the AG alleged. The suit said those two companies then sold these scores to insurance companies. Insurance companies can use data to see how many times people exceeded a speed limit or obeyed other traffic laws. Some insurance firms ask customers if they want to voluntarily opt-in to such programs, promising lower rates for safer drivers. But the attorney general’s office claimed GM “deceived” its Texan customers by encouraging them to enroll in programs such as OnStar Smart Driver. But by agreeing to join these programs, customers also unknowingly agreed to the collection and sale of their data, the attorney general’s office said. Press release. Court filing. Slashdot thread. ** *** ***** ******* *********** ************* Upcoming Speaking Engagements [2024.08.14] This is a current list of where and when I am scheduled to speak: I’m speaking at eCrime 2024 in Boston, Massachusetts, USA. The event runs from September 24 through 26, 2024, and my keynote is on the 24th. The list is maintained on this page. ** *** ***** ******* *********** ************* Since 1998, CRYPTO-GRAM has been a free monthly newsletter providing summaries, analyses, insights, and commentaries on security technology. To subscribe, or to read back issues, see Crypto-Gram's web page. You can also read these articles on my blog, Schneier on Security. Please feel free to forward CRYPTO-GRAM, in whole or in part, to colleagues and friends who will find it valuable. Permission is also granted to reprint CRYPTO-GRAM, as long as it is reprinted in its entirety. Bruce Schneier is an internationally renowned security technologist, called a security guru by the Economist. He is the author of over one dozen books -- including his latest, A Hacker’s Mind -- as well as hundreds of articles, essays, and academic papers. His newsletter and blog are read by over 250,000 people. Schneier is a fellow at the Berkman Klein Center for Internet & Society at Harvard University; a Lecturer in Public Policy at the Harvard Kennedy School; a board member of the Electronic Frontier Foundation, AccessNow, and the Tor Project; and an Advisory Board Member of the Electronic Privacy Information Center and VerifiedVoting.org. He is the Chief of Security Architecture at Inrupt, Inc. Copyright © 2024 by Bruce Schneier. ** *** ***** ******* *********** ************* --- * Origin: High Portable Tosser at my node (618:500/14.1) |
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