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Usenix security conference 2021 Enigma 2021 will take place on February 1–3, 2021, as a virtual event. Our findings underscore the importance of more holistic design of security tools to address both online and offline axes of safety. Directed greybox fuzzing is an augmented fuzzing technique intended for the targeted usages such as crash reproduction and proof-of-concept generation, which gives directedness to fuzzing by driving the seeds toward the designated program locations called target sites. g. Many popular vulnerabilities of embedded systems reside in their vulnerable web services. 6s. Our attack enables a malicious client to learn model weights with 22x--312x fewer queries than the best black-box model-extraction attack and USENIX is committed to Open Access to the research presented at our events. @inproceedings {263782, author = {Shengtuo Hu and Qi Alfred Chen and Jiachen Sun and Yiheng Feng and Z. 's protocol and interview instrument applied to a sample of strictly older adults (>60 years of SmartTVs, the most widely adopted home-based IoT devices, are no exception. USENIX ATC '21 will bring together leading systems researchers for cutting-edge systems research and the opportunity to gain insight into a wealth of must-know topics. 1 Cheng Guo and Brianne Campbell, Clemson University; Apu Kapadia, Indiana University; Michael K. Recent work showed that blind fuzzing is the most efficient approach to identify security issues in hypervisors, mainly due to an outstandingly high test throughput. Become a Sponsor: Sponsorship exposes your brand to highly qualified attendees, funds our grants program, supports open access to our conference content, and keeps USENIX conferences affordable. Because smart contracts are stateful programs whose states are altered by transactions, diagnosing and understanding nontrivial vulnerabilities requires generating sequences of transactions that demonstrate the flaws. Jun 2, 2020 · Please join us for the 30th USENIX Security Symposium, which will be held as a virtual event on August 11–13, 2021. ReDMArk shows that current security mechanisms of IB-based architectures are insufficient against both in-network attackers and attackers located on end hosts, thus affecting not only secrecy, but also @inproceedings {263816, author = {Zitai Chen and Georgios Vasilakis and Kit Murdock and Edward Dean and David Oswald and Flavio D. Fuzzing embeds a large number of decisions requiring finetuned and hard-coded parameters to maximize its efficiency. Security against N −1 malicious provers requires only a 2× slowdown. We implement three collaborative proofs and evaluate the concrete cost of proof generation. Morley Mao and Henry X. Liu}, title = {Automated Discovery of {Denial-of-Service} Vulnerabilities in Connected Vehicle Protocols}, The USENIX Security Symposium is excited to have an in-person conference after two years of virtual conferences. Hence, the efficient detection of hypervisor vulnerabilities is crucial for the security of the modern cloud infrastructure. Conference Sponsorship. Password managers (PMs) are considered highly effective tools for increasing security, and a recent study by Pearman et al. In particular, we first clarify the capabilities that related-domain attackers can acquire through different attack vectors, showing that different instances of the related-domain attacker concept are worth attention. Support USENIX and our commitment to Open Access. , Linux and AOSP) and hundreds of mostly binary OEM kernels (e. Jul 28, 2021 · Learn more about the USENIX Grant Program. Enigma 2022 will take place February 1–3, 2022, at the Hyatt Regency Santa Clara in Santa Clara, CA, USA. Our results suggest that if even high-risk users with clear risk conceptions view existing tools as insufficiently effective to merit the cost of use, these tools are not actually addressing their real security needs. In this paper we define and quantify for the first time the threats that related-domain attackers pose to web application security. The kernel data race has a critical security implication since it often leads to memory corruption, which can be abused to launch privilege escalation attacks. Enigma centers on a single track of engaging talks covering a wide range of topics in security and privacy. While its reliability and cost effectiveness turned CAN into the most widely used in-vehicle communication interface, its topology, physical layer and arbitration mechanism make it impossible to prevent certain types of adversarial activities on the bus. Hence, it is imminent to address the scalability issue in order to make causality analysis practical and applicable to the enterprise-level environment. We expand these findings by replicating Pearman et al. Industrial Control Systems (ICS) have seen a rapid proliferation in the last decade amplified by the advent of the 4th Industrial Revolution. 30th USENIX Security Symposium August 11–13, 2021 Wednesday, August 11 Usability: Authentication Effect of Mood, Location, Trust, and Presence of Others on Video-Based Social Authentication . By analyzing the CVEs and patches available since the inception of the Android security bulletin, as well as open-source upstream kernels (e. Successful applicants will need to submit their Social Security Number (SSN), if applicable, to USENIX prior to receiving their grant. Detailed information is available on the USENIX Security Publication Model Changes web page USENIX is committed to Open Access to the research presented at our events. Finally, we suggest concrete directions for future work on encouraging digital security behavior through security prompts. USENIX is a 501(c)(3) non-profit organization that relies on sponsor support to fulfill its mission. Unfortunately, real-world adversaries resort to pragmatic guessing strategies such as dictionary attacks that are inherently difficult to model in password security studies. In this work, we aim to bridge this gap. Papers and proceedings are freely available to everyone once the event begins. , encoding explicit dependencies among syscalls), and (3) behaviors of inputs (i. Three states—Delaware, West Virginia, and New Jersey—recently announced that they would allow certain voters to cast votes online using OmniBallot, but, despite the well established risks of Internet voting, the system has never before undergone a public, independent USENIX is committed to Open Access to the research presented at our events. 3-A general purpose hardware mechanism for pointer authentication (PA) to implement ACS. e. org USENIX is committed to Open Access to the research presented at our events. Complete the form below to apply for a student grant for USENIX Security '21. . However, the security of LDP protocols is largely unexplored. Distinguished Paper Award Winner and Third Prize winner of the 2021 Internet Defense Prize Abstract: Reflective amplification attacks are a powerful tool in the arsenal of a DDoS attacker, but to date have almost exclusively targeted UDP-based protocols. Browser extensions enrich users' browsing experience, e. , by Samsung), we find that the delays of patches are largely due to the current patching practices and the lack of knowledge about which Please join us for the 30th USENIX Security Symposium, which will be held as a virtual event on August 11–13, 2021. Yuchen Wang, TCA of State Key Laboratory of Computer Science, Institute of Software, Chinese Academy of Sciences & Alibaba Group We leverage the use of TLS certificates by phishers to uncover possible Dutch phishing domains aimed at the financial sector between September 2020 and January 2021. Our goal is to clearly explain emerging threats and defenses in the growing intersection of society and technology, and to foster an intelligent and informed conversation within USENIX is committed to Open Access to the research presented at our events. . Thus, it depends on the weakest link of the chain, as any failed part can break the whole chain-based defense. , Canada. USENIX is committed to Open Access to the research presented at our events. To proactively address the problem, we propose a systematic evaluation of Android SmartTVs security. Our prototype, PACStack, uses the ARMv8. This is especially true for kernel fuzzing due to (1) OS kernels' sheer size and complexity, (2) a unique syscall interface that requires special handling (e. Sponsorship exposes your brand to highly qualified attendees, funds our diversity and student grants, supports open access to our conference content, and keeps USENIX running. Late applications will not be considered. This provides us an opportunity to build a unified and generic security framework defending against multiple kinds of UV attacks by monitoring the system's I/O activities. , Hash Time-Lock Contracts) that hinders a wider deployment in Finally, we use a state-of-the-art formal verification tool, Tamarin prover, to prove that 5G-AKA′ achieves the desired security goals of privacy, authentication and secrecy. We find that over a 3Gb/s link, security against a malicious minority of provers can be achieved with approximately the same runtime as a single prover. This paper demonstrates that in such settings, an adversary can perform a training data extraction attack to recover individual training examples by querying the language model. We are rethinking the decades-old design of the CAN bus by incorporating reactive defense capabilities in it. Concept drift poses a critical challenge to deploy machine learning models to solve practical security problems. The Seventeenth Symposium on Usable Privacy and Security (SOUPS 2021), August 8–10, 2021, Virtual Event. , by blocking unwanted advertisements on websites. Based on our results, we distill a set of best-practice design patterns for most effectively encouraging protective behavior through carefully communicating with users about 2FA. Garcia}, title = {{VoltPillager}: Hardware-based fault injection attacks against Intel {SGX} Enclaves using the {SVID} voltage scaling interface}, USENIX is committed to Open Access to the research presented at our events. Although SDN can improve network security oversight and policy enforcement, ensuring the security of SDN from sophisticated attacks is an ongoing challenge for practitioners. In addition, the effectiveness of the analysis to discover security breaches relies on the assumption that comprehensive historical events over a long span are stored. A kernel data race is notoriously challenging to detect, reproduce, and diagnose, mainly caused by nondeterministic thread interleaving. Please do not use !?_ or your License Plate Number: Analyzing Password Policies in German Companies USENIX is committed to Open Access to the research presented at our events. In this paper, we investigate cross-protocol attacks on TLS in general and conduct a systematic case study on web servers, redirecting HTTPS requests from a victim Zhikun Zhang, Zhejiang University and CISPA Helmholtz Center for Information Security; Tianhao Wang, Ninghui Li, and Jean Honorio, Purdue University; Michael Backes, CISPA Helmholtz Center for Information Security; Shibo He and Jiming Chen, Zhejiang University and Alibaba-Zhejiang University Joint Research Institute of Frontier Technologies; Yang Zhang, CISPA Helmholtz Center for Information A security threat to deep neural networks (DNN) is data contamination attack, in which an adversary poisons the training data of the target model to inject a backdoor so that images carrying a specific trigger will always be given a specific label. These studies mainly focused on improving the utility of the LDP protocols. , funds are locked for a time proportional to the payment path length) and dependency on specific scripting language functionality (e. Democracy Live's OmniBallot platform is a web-based system for blank ballot delivery, ballot marking, and online voting. To perform these functions, users must grant certain permissions during the installation process. Please join us for the 30th USENIX Security Symposium, which will be held as a virtual event on August 11–13, 2021. We demonstrate that PACStack's performance overhead is USENIX is committed to Open Access to the research presented at our events. Unfortunately, existing vulnerability detection methods cannot effectively nor efficiently analyze such web services: they either introduce heavy execution overheads or USENIX is committed to Open Access to the research presented at our events. Our goal is to clearly explain emerging threats and defenses in the growing intersection of society and technology, and to foster an intelligent and informed conversation within the community and the world. Aug 11, 2021 · Join us in Vancouver, B. @inproceedings {263848, author = {Marten Oltrogge and Nicolas Huaman and Sabrina Klivan and Yasemin Acar and Michael Backes and Sascha Fahl}, title = {Why Eve and Mallory Still Love Android: Revisiting {TLS} ({In)Security} in Android Applications}, With all of USENIX's 2021 events being held online, we need support more than ever and welcome your organization’s sponsorship. , wormhole attacks), staggered collateral (i. Albeit their popularity, little has been done to evaluate their security and associated risks. , Canada, for the 30th USENIX Security Symposium. The continuing use of proprietary cryptography in embedded systems across many industry verticals, from physical access control systems and telecommunications to machine-to-machine authentication, presents a significant obstacle to black-box security-evaluation efforts. Any video, audio, and/or slides that are posted after the event are also free and open to everyone. We are, therefore, offering an opportunity to authors of papers from the 2020 and 2021 USENIX Security Symposium to present their papers as posters this year in Boston. Accordingly, we build a security reference monitor for UVs by hooking into the memory-mapped I/O (MMIO), namely M2MON. At the same time, several notable cybersecurity incidents in industrial environments have underlined the lack of depth in security evaluation of industrial devices such as Programmable Logic Controllers (PLC). Existing network forensics tools attempt to identify and track such attacks, but holistic causal reasoning across control and data planes remains challenging. Jun 14, 2021 · 2021: Conference Name: 30th USENIX Security Symposium (USENIX Security 21) Date Published: 08/2021: Publisher: USENIX Association: URL: https://www. A Large-Scale Interview Study on Information Security in and Attacks against Small and Medium-sized Enterprises. Acknowledgement * Password security hinges on an in-depth understanding of the techniques adopted by attackers. However, when tied with economical incentives, 2-phase-commit brings other security threats (i. USENIX Security brings together researchers, practitioners, system administrators, system programmers, and others to share and explore the latest advances in the security and privacy of computer systems and networks. In this work, we investigate where Internet services are deployed in practice and evaluate the security posture of services on unexpected ports. We present SmarTest, a novel symbolic execution technique for effectively hunting vulnerable transaction sequences in smart contracts. Due to the dynamic behavior changes of attackers (and/or the benign counterparts), the testing data distribution is often shifting from the original training data over time, causing major failures to the deployed model. Depending on the application, our attacks cause system crashes, data corruption and leakage, degradation of security, and can introduce remote code execution and arbitrary errors. However, their pervasiveness also amplifies the impact of security vulnerabilities. usenix. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one service may compromise the security of the other at the application layer. In the past several years, researchers from multiple communities—such as security, database, and theoretical computer science—have proposed many LDP protocols. We reveal that while a smartphone is charging, its power trace, which can be measured via the USB charging cable, leaks information about the dynamic content on its screen. Via a rigorous security analysis, we show that PACStack achieves security comparable to hardware-assisted shadow stacks without requiring dedicated hardware. In our evaluation of the attacks in the Internet we find that all the standard compliant open DNS resolvers we tested allow our injection attacks against applications USENIX is committed to Open Access to the research presented at our events. We show protocol deployment is more diffuse than previously believed and that protocols run on many additional ports beyond their primary IANA-assigned port. It can handle a query on CIFAR-100 with ~68% accuracy in 14s or ~66% accuracy in 2. Please join us for the 30th USENIX Security Symposium, which will be held as a virtual event on August 11–13, 2021. (SOUPS '19) highlighted the motivations and barriers to adopting PMs. Pengfei Jing, The Hong Kong Polytechnic University and Keen Security Lab, Tencent; Qiyi Tang and Yuefeng Du, Keen Security Lab, Tencent; Lei Xue and Xiapu Luo, The Hong Kong Polytechnic University; Ting Wang, Pennsylvania State University; Sen Nie and Shi Wu, Keen Security Lab, Tencent Hence, the security of RDMA architectures is crucial, yet potential security implications of using RDMA communication remain largely unstudied. We collect 70 different Dutch phishing kits in the underground economy, and identify 10 distinct kit families. We explore the design space of multi-vantage-point domain validation to achieve (1) security via sufficiently diverse vantage points, (2) performance by ensuring low latency and overhead in certificate issuance, (3) manageability by complying with CA/Browser forum requirements, and requiring minimal changes to CA operations, and (4) a low The 30th USENIX Security Symposium will be held August 11–13, 2021, in Vancouver, B. A recent cryptographic solution Delphi (Usenix Security 2020) strives for low latency by using GPU on linear layers and replacing some non-linear units in the model at a price of accuracy. 2021 USENIX Annual Technical Conference will take place as a virtual event on July 14–16, 2021. This paper uncovers a new security threat posed by a side-channel leakage through the power line, called Charger-Surfing, which targets these touchscreen devices. , test cases) are often not Please join us for the 30th USENIX Security Symposium, which will be held as a virtual event on August 11–13, 2021. Known approaches for using decoy passwords (honeywords) to detect credential database breaches suffer from the need for a trusted component to recognize decoys when entered in login attempts, and from an attacker's ability to test stolen passwords at other sites to identify user-chosen passwords based on their reuse at those sites. Distinguished Paper Award Winner and Second Prize winner of the 2021 Internet Defense Prize Abstract: Semi-supervised machine learning models learn from a (small) set of labeled training examples, and a (large) set of unlabeled training examples. C. Reiter, Duke Please join us for the 30th USENIX Security Symposium, which will be held as a virtual event on August 11–13, 2021. An email's authenticity is based on an authentication chain involving multiple protocols, roles and services, the inconsistency among which creates security threats. To demonstrate that a malicious client can completely break the security of semi-honest protocols, we first develop a new model-extraction attack against many state-of-the-art secure inference protocols. Important: The USENIX Security Symposium moved to multiple submission deadlines in 2019 and included changes to the review process and submission policies. It has become common to publish large (billion parameter) language models that have been trained on private datasets. rxj izsza jkoyj vsrd htsttghi vhge fknn aeaid xtepbd ybdcv