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#safeslab

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Vasileios Kemerlis<p>📢 Honored to return to Yale University last week to speak at the Department of Computer Science colloquium on Operating Systems security -- exactly 10 years after my first talk there on the same topic!</p><p>In this "tin anniversary" edition, I reflected on how OS kernel exploitation and defense have evolved over the past decade, and shared highlights from some of our recent work in the field over the last five years:</p><p>✳️ xMP (IEEE S&amp;P 2020: 📄 <a href="https://cs.brown.edu/~vpk/papers/xmp.sp20.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/xmp.s</span><span class="invisible">p20.pdf</span></a>, 💾 <a href="https://github.com/virtsec/xmp" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/virtsec/xmp</span><span class="invisible"></span></a>) — Selective intra-kernel memory isolation using hardware-assisted virtualization.</p><p>✳️ SafeSLAB (ACM CCS 2024: 📄 <a href="https://cs.brown.edu/~vpk/papers/safeslab.ccs24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/safes</span><span class="invisible">lab.ccs24.pdf</span></a>, 💾 <a href="https://github.com/tum-itsec/safeslab" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/tum-itsec/safeslab</span><span class="invisible"></span></a>) — Kernel heap hardening through memory tagging.</p><p>✳️ EPF (USENIX ATC 2023: 📄 <a href="https://cs.brown.edu/~vpk/papers/epf.atc23.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/epf.a</span><span class="invisible">tc23.pdf</span></a>, 💾 <a href="https://gitlab.com/brown-ssl/epf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/epf</span><span class="invisible"></span></a>) — Exploiting the (e)BPF sub-system for bypassing modern protections and ways to fix this.</p><p>(Joint work with <span class="h-card" translate="no"><a href="https://infosec.exchange/@mikepo" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mikepo</span></a></span>, Marius Momeu, Vaggelis Atlidakis, <span class="h-card" translate="no"><a href="https://mastodon.social/@dijin" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>dijin</span></a></span>, and Sergej Proskurin.)</p><p>If this area of research interests you, you might also find our recent work on BeeBox (strengthening eBPF against transient execution attacks, USENIX Security 2024: 📄 <a href="https://cs.brown.edu/~vpk/papers/beebox.sec24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/beebo</span><span class="invisible">x.sec24.pdf</span></a>, 💾 <a href="https://gitlab.com/brown-ssl/beebox" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/beebox</span><span class="invisible"></span></a>) and IUBIK (leveraging memory tagging and pointer authentication to isolate attacker-controlled data in kernel space, to appear in IEEE S&amp;P 2025) worth a look.</p><p>It was a real pleasure catching up with friends, colleagues, and students. And with the spring weather fully cooperating, I couldn't resist snapping a few photos of Yale's beautiful campus in the early morning light.</p><p>Thank you to my host Charalampos Papamanthou and the Yale CS department for the warm welcome and thoughtful discussion!</p><p><a href="https://infosec.exchange/tags/xmp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>xmp</span></a> <a href="https://infosec.exchange/tags/safeslab" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>safeslab</span></a> <a href="https://infosec.exchange/tags/epf" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>epf</span></a> <a href="https://infosec.exchange/tags/brownssl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>brownssl</span></a></p>
Vasileios Kemerlis<p>As we welcome 2025, I'd like to take a moment to reflect on what an extraordinary year 2024 has been for Brown CS Secure Systems Lab (<a href="https://gitlab.com/brown-ssl/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/</span><span class="invisible"></span></a>). It has been a year of innovation, creativity, and growth—both for the lab and for me personally as its director. Witnessing the passion, dedication, and brilliance of our team—Neophytos Christou, Alexander Gaidis, Marius Momeu, <span class="h-card" translate="no"><a href="https://mastodon.social/@dijin" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>dijin</span></a></span>, and Vaggelis Atlidakis—has been truly fulfilling and inspiring!</p><p>In 2024, we tackled complex challenges and made significant strides in advancing our research on software hardening and OS kernel protection. Here are some highlights from this remarkable year:</p><p>✳️ Marius Momeu presented <a href="https://infosec.exchange/tags/SafeSlab" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SafeSlab</span></a> at <span class="h-card" translate="no"><a href="https://mastodon.acm.org/@acm_ccs" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>acm_ccs</span></a></span> <a href="https://infosec.exchange/tags/CCS2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CCS2024</span></a>. Safeslab hardens the Linux SLUB allocator against exploits that abuse use-after-free (<a href="https://infosec.exchange/tags/UaF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UaF</span></a>) vulnerabilities, using <a href="https://infosec.exchange/tags/Intel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Intel</span></a> <a href="https://infosec.exchange/tags/MPK" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MPK</span></a>. (Joint work with Technical University of Munich and <span class="h-card" translate="no"><a href="https://infosec.exchange/@mikepo" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mikepo</span></a></span>.)<br>📄 <a href="https://cs.brown.edu/~vpk/papers/safeslab.ccs24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/safes</span><span class="invisible">lab.ccs24.pdf</span></a><br>💾 <a href="https://github.com/tum-itsec/safeslab" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/tum-itsec/safeslab</span><span class="invisible"></span></a></p><p>✳️ Neophytos Christou presented <a href="https://infosec.exchange/tags/Eclipse" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Eclipse</span></a> at <span class="h-card" translate="no"><a href="https://mastodon.acm.org/@acm_ccs" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>acm_ccs</span></a></span> <a href="https://infosec.exchange/tags/CCS2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CCS2024</span></a>. Eclipse is a compiler-assisted framework that propagates artificial data dependencies onto sensitive data, preventing the CPU from using attacker-controlled input during speculative execution.<br>📄 <a href="https://cs.brown.edu/~vpk/papers/eclipse.ccs24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/eclip</span><span class="invisible">se.ccs24.pdf</span></a><br>💾 <a href="https://gitlab.com/brown-ssl/eclipse" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/eclipse</span><span class="invisible"></span></a></p><p>✳️ Di Jin presented <a href="https://infosec.exchange/tags/BeeBox" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BeeBox</span></a> at the <span class="h-card" translate="no"><a href="https://infosec.exchange/@usenixassociation" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>usenixassociation</span></a></span> Security Symposium 2024. BeeBox hardens <a href="https://infosec.exchange/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Linux</span></a> BPF/eBPF against transient execution attacks. <a href="https://infosec.exchange/tags/usesec24" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>usesec24</span></a><br>📄 <a href="https://cs.brown.edu/~vpk/papers/beebox.sec24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/beebo</span><span class="invisible">x.sec24.pdf</span></a><br>💾 <a href="https://gitlab.com/brown-ssl/beebox" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/beebox</span><span class="invisible"></span></a></p><p>✳️ Yaniv David presented <a href="https://infosec.exchange/tags/Quack" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Quack</span></a> at the NDSS Symposium 2024. Quack hardens PHP code against deserialization attacks using a novel (static) duck typing-based approach. (Joint work with Andreas D Kellas and Junfeng Yang.) <a href="https://infosec.exchange/tags/NDSSsymposium2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NDSSsymposium2024</span></a><br>📄 <a href="https://cs.brown.edu/~vpk/papers/quack.ndss24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/quack</span><span class="invisible">.ndss24.pdf</span></a><br>💾 <a href="https://github.com/columbia/quack" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/columbia/quack</span><span class="invisible"></span></a></p><p>✳️ Marius Momeu presented <a href="https://infosec.exchange/tags/ISLAB" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ISLAB</span></a> at <span class="h-card" translate="no"><a href="https://mastodon.acm.org/@ACM" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>ACM</span></a></span> <a href="https://infosec.exchange/tags/ASIACCS24" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ASIACCS24</span></a>. ISLAB hardens SLAB-based (kernel) allocators, against memory errors, via SMAP-assisted isolation. (Joint work with Technical University of Munich and <span class="h-card" translate="no"><a href="https://infosec.exchange/@mikepo" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mikepo</span></a></span>.) <a href="https://infosec.exchange/tags/asiaccs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>asiaccs</span></a><br>📄 <a href="https://cs.brown.edu/~vpk/papers/islab.asiaccs24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/islab</span><span class="invisible">.asiaccs24.pdf</span></a><br>💾 <a href="https://github.com/tum-itsec/islab" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/tum-itsec/islab</span><span class="invisible"></span></a></p><p>🏆 <a href="https://infosec.exchange/tags/EPF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EPF</span></a> (presented by Di Jin at <span class="h-card" translate="no"><a href="https://infosec.exchange/@usenixassociation" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>usenixassociation</span></a></span> <a href="https://infosec.exchange/tags/ATC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ATC</span></a> 2023) was the runner-up for the "Bug of the Year" award ("Weirdest Machine" category) at IEEE Symposium on Security and Privacy LangSec (Language-Theoretic Security) workshop 2024! <a href="https://infosec.exchange/tags/atc23" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>atc23</span></a> <a href="https://infosec.exchange/tags/LangSec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LangSec</span></a><br>⌨️ <a href="https://langsec.org/spw24/bugs-of-the-year-awards.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">langsec.org/spw24/bugs-of-the-</span><span class="invisible">year-awards.html</span></a><br>📄 <a href="https://cs.brown.edu/~vpk/papers/epf.atc23.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/epf.a</span><span class="invisible">tc23.pdf</span></a><br>💾 <a href="https://gitlab.com/brown-ssl/epf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/epf</span><span class="invisible"></span></a></p><p>🏅 I am honored and delighted to have received the "Distinguished Reviewer Award" at <span class="h-card" translate="no"><a href="https://mastodon.acm.org/@acm_ccs" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>acm_ccs</span></a></span> <a href="https://infosec.exchange/tags/CCS2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CCS2024</span></a>!</p><p>🏅Alexander Gaidis has been awarded the "Distinguished Artifact Reviewer" award at the <span class="h-card" translate="no"><a href="https://infosec.exchange/@usenixassociation" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>usenixassociation</span></a></span> Security Symposium 2024!<br><a href="https://cs.brown.edu/news/2024/09/20/brown-cs-phd-student-alexander-j-gaidis-has-been-named-a-usenix-security-2024-distinguished-artifact-reviewer/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/news/2024/09/20/b</span><span class="invisible">rown-cs-phd-student-alexander-j-gaidis-has-been-named-a-usenix-security-2024-distinguished-artifact-reviewer/</span></a><br><a href="https://infosec.exchange/tags/usesec24" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>usesec24</span></a> <a href="https://infosec.exchange/tags/proudadvisor" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>proudadvisor</span></a></p><p>📢 I had the great pleasure of discussing some of these works recently at the Computer Systems Seminar at Boston University!<br>📽️ <a href="https://www.bu.edu/rhcollab/events/bu-systems-bu%E2%99%BAs-seminar/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bu.edu/rhcollab/events/bu-syst</span><span class="invisible">ems-bu%E2%99%BAs-seminar/</span></a></p><p><a href="https://infosec.exchange/tags/brownssl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>brownssl</span></a> <a href="https://infosec.exchange/tags/browncs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>browncs</span></a> 🚀</p>
Vasileios Kemerlis<p>📢 Off to <a href="https://infosec.exchange/tags/SaltLakeCity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SaltLakeCity</span></a>, <a href="https://infosec.exchange/tags/Utah" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Utah</span></a> for attending<br><span class="h-card" translate="no"><a href="https://mastodon.acm.org/@acm_ccs" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>acm_ccs</span></a></span> 2024! Brown Secure Systems Lab (<a href="https://gitlab.com/brown-ssl/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/</span><span class="invisible"></span></a>) has a strong representation in <a href="https://infosec.exchange/tags/CCS2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CCS2024</span></a>:<br> <br>* Marius Momeu will be presenting <a href="https://infosec.exchange/tags/SafeSlab" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SafeSlab</span></a>: our work on hardening the Linux SLUB allocator, against exploits that abuse use-after-free (<a href="https://infosec.exchange/tags/UaF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UaF</span></a>) vulnerabilities, using <a href="https://infosec.exchange/tags/Intel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Intel</span></a> <a href="https://infosec.exchange/tags/MPK" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MPK</span></a> (Session 3-4, Software Security: Memory Safety and Error Detection) | <a href="https://cs.brown.edu/~vpk/papers/safeslab.ccs24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/safes</span><span class="invisible">lab.ccs24.pdf</span></a> | <a href="https://github.com/tum-itsec/safeslab" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/tum-itsec/safeslab</span><span class="invisible"></span></a>. (Joint work with Technical University of Munich and Stony Brook University.)</p><p>* Neophytos Christou will be talking about <a href="https://infosec.exchange/tags/Eclipse" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Eclipse</span></a>: a compiler-assisted framework for hardening C/C++ applications against speculative memory-error abuse attacks (Session 8-4, Software Security: Program Analysis and Security Enhancement) | <a href="https://cs.brown.edu/~vpk/papers/eclipse.ccs24.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cs.brown.edu/~vpk/papers/eclip</span><span class="invisible">se.ccs24.pdf</span></a> | <a href="https://gitlab.com/brown-ssl/eclipse" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">gitlab.com/brown-ssl/eclipse</span><span class="invisible"></span></a>. (Joint work with Alexander Gaidis and Vaggelis Atlidakis.)</p><p>Brown CS participates in ACM CCS with five papers in total this year! In addition to the above, if interested, take a look at the following great (crypto/applied crypto) papers:</p><p> - PathGES: An Efficient and Secure Graph Encryption Scheme for Shortest Path Queries (Session 8-5, Applied Crypto: Crypto Applied to cloud computing and machine learning)</p><p>- Reconstructing with Even Less: Amplifying Leakage and Drawing Graphs (Session 9-6, Applied Crypto: Customized cryptographic solutions)</p><p>- RSA-Based Dynamic Accumulator without Hashing into Primes (Session 9-1, Applied Crypto: Integrity and Authentication)</p><p><a href="https://infosec.exchange/tags/brownssl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>brownssl</span></a> | <a href="https://infosec.exchange/tags/eclipse" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>eclipse</span></a> | <a href="https://infosec.exchange/tags/safeslab" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>safeslab</span></a> | <a href="https://infosec.exchange/tags/CCS2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CCS2024</span></a></p>