ZeroHour

Source: Lobsters · security

14 stories in the last 30d

1Password's AI patching benchmark is misleading

Trail of Bits reanalysis says 1Password's 26% AI clean-fix rate is misleading; 86% of eligible patches blocked exploits.

Trail of Bits critiques 1Password's FLAWED AI patching benchmark, arguing its 26% clean-fix headline mixes trials where agents were instructed to apply wrong fixes (22% of data) with trials that prohibited compiling or testing (36%). Restricting to reasonable conditions, 2,634 of 3,067 patches (86%) blocked the supplied exploit. Trail of Bits also reports 12.5% of 2,265 developer first fixes failed in its own 2024-2026 assessments, and released post-patch-validation and review-walkthrough agent skills.

Lobsters · security · 3h agoResearch

The gpg.fail aftermath: On responsible disclosure, GPG, and the state of security in 2026 [32:37]

A conference talk recounts GPG vulnerability disclosures, notes several GnuPG flaws remain unpatched, and demonstrates novel bugs live.

A researcher who disclosed multiple GnuPG vulnerabilities before 39c3 in December 2025 reports that several flaws, including one allowing spoofed PGP signatures, remain unpatched. Memory corruption in the basic PGP message parser was properly fixed, but GnuPG maintainer Werner Koch declared a widely-used feature 'harmful' instead of patching it. The talk presents additional novel GPG vulnerabilities and commentary on responsible disclosure and LLMs in security.

Lobsters · security · 3d agoResearch

Linux Zoom Client Proactively Reads X11 Clipboard

Simon Tatham reports that Zoom's Linux client proactively reads the X11 clipboard, potentially exposing copied passwords and other sensitive data.

A Mastodon post by Simon Tatham, shared via Lobsters, reports that the Linux Zoom client proactively reads the X11 system clipboard rather than accessing it only on explicit paste. Because X11 allows any running application to query clipboard contents, secrets such as copied passwords or tokens may be captured by the app. The observation highlights the broader privacy gap between X11's unrestricted clipboard access and more restricted display servers like Wayland.

Lobsters · security · 3d agoResearch1

Rare Not Random Using Token Efficiency for Secrets Scanning

Researcher proposes token efficiency (string length divided by BPE token count) as a better post-regex filter than entropy for secrets scanning, validated on CredData.

The post explores whether Byte-Pair Encoding tokenization can replace Shannon entropy as the primary filter for candidate secrets captured by regex in tools like Gitleaks. It defines 'token efficiency' as string length divided by token count under the cl100k_base tokenizer; secret-like strings such as GitHub tokens tokenize into many small tokens and score low, while natural text scores high. Evaluating labeled secrets from the CredData dataset shows a usable separation, with roughly 2.5 suggested as a minimum cutoff versus Gitleaks' 3.5 entropy threshold. The technique is positioned as a post-regex filtering step rather than a standalone detector.

Lobsters · security · 3d agoResearch

An untrusted site can freeze a Mac using WebGPU

A security researcher shows an untrusted website can trigger a system-wide freeze of a Mac via the WebGPU API.

A blog post describes how an untrusted website can use the WebGPU API to cause a Mac to freeze, taking down the whole system rather than just the browser tab. The write-up appears to analyze the underlying GPU/browser behavior that leads to the hang. The source text provided is minimal, so technical specifics such as affected browsers, macOS versions, and disclosure status are not stated.

Lobsters · security · 4d agoResearch

How CHERIoT Provides Strong and Usable Isolation Without an MMU

ACM Queue paper explains how CHERIoT uses CHERI hardware capabilities to give microcontroller-class IoT devices memory and privilege isolation without an MMU.

The ACM Queue article (DOI 10.1145/3831361) describes CHERIoT, a RISC-V-derived platform that scales CHERI capability-based hardware down to small embedded and IoT microcontrollers. It provides strong, fine-grained isolation and memory safety without a memory management unit, aiming to make compartmentalization practical for low-cost devices. The piece emphasizes usability of the isolation model alongside its security guarantees.

Lobsters · security · 5d agoResearch

Package Manager Trends

Sixteen-week roundup finds package managers converging on release-age cooldowns, install-script blocking, malware scans, and recurring path-traversal and credential-leak fixes.

The author aggregates supply-chain security trends from sixteen weeks of This Week in Package Management, built from about 80 RSS feeds. Release-age cooldown gates shipped in Deno 2.8, Bundler, npm, Yarn, mise, Hex, Mamba, and Cargo, with Dependabot making a three-day cooldown default in August. npm 12 and Bun 1.4 now block lifecycle install scripts by default, and Composer 2.10 and uv added install/publish-time malware checks, while npm's registry began scanning at publish time. Path traversal on archive extraction was fixed in 14 of 16 weeks across tools including uv, pnpm, Docker, and Composer, and credential-misdirection bugs affected Cargo, ORAS, Composer, and Renovate.

Lobsters · security · 5d agoResearch1

Why Johnny Can't Encrypt: A Usability Evaluation of PGP 5.0 (1999)

Seminal 1999 USENIX study finds most novice users cannot correctly sign and encrypt email with PGP 5.0 in 90 minutes.

Whitten and Tygar's USENIX Security Symposium paper evaluates whether cryptography novices can use PGP 5.0 effectively, using cognitive walkthrough analysis and a laboratory user test. The majority of test participants failed to successfully sign and encrypt a message within 90 minutes, despite PGP 5.0 having a well-regarded graphical interface. The authors argue that security requires usability standards beyond those of general consumer software and propose domain-specific UI design principles for security. The paper is a foundational reference in usable security research.

Lobsters · security · 6d agoResearch

Signing TLS handshakes inside a TPM

Blog post demonstrates signing TLS handshakes in Go with a TPM-held private key; full text was unavailable behind an Anubis challenge.

The title indicates a technique write-up on using a TPM-protected private key to sign TLS handshakes from Go. The full article text was not retrievable because the site serves an Anubis Hashcash-style proof-of-work challenge to automated fetchers, so no additional technical details (code, library, or threat model) could be extracted at collection time.

Lobsters · security · 8d agoResearch

Trusting-Trust Attack against an Entire Linux Distribution (via the strip utility)

ArXiv paper shows the trusting-trust compiler backdoor technique can compromise an entire Linux distribution via the strip utility.

The paper (arXiv 2607.24888) demonstrates that Ken Thompson's trusting-trust attack, long viewed as a compiler-specific threat, can backdoor an entire Linux distribution by targeting the strip utility. A compromised tool reproduces its backdoor in subsequent rebuilds of itself, generalizing the attack surface beyond compilers. The finding has supply-chain implications for build reproducibility and distribution trust, though it is a research result with no observed real-world exploitation.

Lobsters · security · 10d agoResearch

Privilege escalation from IIS AppPool to NT Authority/SYSTEM

A write-up demonstrates privilege escalation from an IIS AppPool identity to NT AUTHORITY/SYSTEM via the AD CS RPC endpoint.

A technical write-up details a Windows privilege escalation path that moves an IIS application pool identity to NT AUTHORITY/SYSTEM by abusing the Active Directory Certificate Services RPC endpoint. The technique chains the restricted IIS AppPool service context with AD CS access to reach SYSTEM on the host. The post is relevant for defenders mapping privilege escalation paths on Windows web servers.

Lobsters · security · 15d agoResearch

Rootless Docker and Its Hidden Security Trade-Offs

A blog post examines the security trade-offs of running Docker in rootless mode, covering isolation benefits and hidden limitations for defenders.

Ken Muse published a write-up titled 'Rootless Docker and Its Hidden Security Trade-Offs', analyzing the security implications of rootless Docker deployments. The feed provides only the title, so detailed findings are not available in this item, but the piece targets the intersection of containerization and privilege isolation practices.

Lobsters · security · 15d agoResearch1

I accidentally turned LLM memory into program analysis

A pwning.systems write-up describes how LLM memory functionality was unexpectedly repurposed into a program analysis technique.

A security research post on pwning.systems describes the author's discovery that LLM memory behavior effectively functioned as program analysis. The write-up is hosted on a security-focused blog and surfaced via a security-tagged link aggregator. Detailed technical content is not included in this feed, limiting verifiable specifics.

Lobsters · security · 17d agoResearch1

Stopping the smart TV from being used against you

Guide describes practical hardening steps to prevent smart TVs from spying on their owners or being used against them.

A tutorial-style post walks through defensive measures to keep a smart TV from collecting user data or being leveraged against its owner. The piece is a consumer IoT privacy and hardening guide rather than a disclosure of a specific vulnerability.

Lobsters · security · 18d agoResearch