Marcelo Fernandez (@fidelfernandez) header
Marcelo Fernandez (@fidelfernandez) profile picture

Informático. Python, Linux, Software Libre. Cuervo desde la cuna.

Moreno, BuenosAires, Argentina
Joined November 2009
Photo by Marcelo Fernandez (@fidelfernandez)Photo by Marcelo Fernandez (@fidelfernandez)Photo by Marcelo Fernandez (@fidelfernandez)Photo by Marcelo Fernandez (@fidelfernandez)Photo by Marcelo Fernandez (@fidelfernandez)Photo by Marcelo Fernandez (@fidelfernandez)Photo by Marcelo Fernandez (@fidelfernandez)Photo by Marcelo Fernandez (@fidelfernandez)
Marcelo Fernandez retweeted
sshole is the dumbest security vulnerability i've seen in a long time how did this not get caught earlier
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Marcelo Fernandez retweeted
Discord is rebuilding its apps from scratch in Rust! Discord CTO Stanislav Vishnevskiy confirmed they are ditching Electron and React Native. The new client is fully written in Rust and uses GPUI for rendering. Early preview show massive performance gains: - RAM usage dropped to ~290 MB (down from ~2 GB) - Single, lightweight process instead of endless Chromium helpers
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Y no habla inglés. Más sorprendente aún
Solo Pergolini te puede sacar un rolling stone de la galera totalmente de la nada en big 2026
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Marcelo Fernandez retweeted
I'm not even sounding the claxon for this it's just horrible. Any text > 256chars is a valid root password, holy shit sshhole.com/
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Marcelo Fernandez retweeted
Postman 最新版本的操作彻底惹怒了全球开发者,GitHub 上的 Issue #14370 已经被愤怒的程序员直接冲上千星。 很多开发者以为这只是又一个弹窗推广 AI 的商业行为,但翻开代码和配置才发现性质极其恶劣: Postman 桌面客户端在启动时,竟然在后台静默扫描用户的本地环境,直接修改了本机的 ~/.claude/settings.json 和 ~/.codex/config.toml,将 Postman 远程 Model Context Protocol(MCP)插件强行注入给开发者的 Claude Code 和 OpenAI Codex 工具链! 更夸张的是,它的安装脚本竟然直接在本地配置里写入了一条 trust 信任记录,把自己的启动 Hook 标记为已信任,强行绕过了 Claude 和 Codex 原本强制弹出的用户安全确认窗口!如果不是 Codex 在后台尝试连接 mcp.postman.com 时疯狂抛出鉴权失败日志,绝大多数工程师到现在还被蒙在鼓里。 作为日常必备的接口调试工具,Postman 发出的每一个请求体里,都带着真实的生产 Bearer Token、金融测试账号、未脱敏的内网微服务路由甚至云端 AccessKey。原本为了提效的辅助工具,却未经许可私自篡改本地其他软件配置并建立远程通道。 这也直接把大量金融与企业团队推向了彻底的离线化替代路线:现在很多团队在组策略里直接禁封 Postman,连夜转向数据 100% 存在本地 Git 仓库纯文本的 Bruno 和 Hoppscotch。
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Marcelo Fernandez retweeted
Today's Claude extension compromise is a good reminder to do this. If you're using VSCode @code, Cursor @cursor_ai, or any other IDE built on VSCode, I would immediately enable extensions.installCooldownHours. I've set this setting to 72 (hours), which is a much safer delay to install new updates to extensions than the default setting of 0 (immediate updates). This prevents extension updates from getting installed for 3 days, which would hopefully eliminate most of the risk from compromised updates. It's not foolproof, but it's better than no delay. Heck, set it to something even higher to be safer, like 336 (2 weeks).
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Marcelo Fernandez retweeted
Feliz aniversario a Dynamo de Soda Stereo, de los mejores discos del rock argentino, aún cuando al salir pocos lo entendieron, el tiempo le dió su debido lugar y hoy es uno de los más venerados de la banda Dreampop, noise, baggy y shoegaze 100% argentino
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Jajaja cómo me hace reír esto cada vez que lo veo
como estará este chad de Independiente no? JAJAJAJAJAJJASKAKAKKAJ
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Marcelo Fernandez retweeted
Grub is KING
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Marcelo Fernandez retweeted
the tailscale vulnerabilities read like slop to me. nothing in there seems critical or reason to panic. also: no repsonsible disclosure, nor any code or proof. feels like a scam.
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For some exceptional reason it could work as a workaround, but come on… just buy a Mac
Cutefish, our Linux desktop, will run Mac apps.
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Marcelo Fernandez retweeted
Replacing long lived secrets with short lived secrets (oidc) was a useful idea 2 years ago. I don’t think bearer tokens with 15 minute expiration are gonna stop you from getting owned. Proof of possession (e.g. TLS) is the only way. OIDC will be dead in 2 months
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Marcelo Fernandez retweeted
So basically, today PHP got two critical bugs that let anyone run code on your server without even logging in, which is bad, and then the details leaked before the patch was even out, which is worse, and it works on WordPress and MediaWiki and Magento and Joomla and Laravel, and Censys says like 1.5 million servers are running a version with no fix, so the NSA was like "take your system offline," and the FBI was like "take your system offline," and CISA and the UK and CERT-EU were all like "take your system offline," and then the Prime Minister of Japan, the actual Prime Minister, posted at 5:55 in the morning telling 48.8 million people to take their system offline, so everyone took their system offline, like the Dutch cybersecurity agency took its own website offline, and the Dutch parliament went offline, and the Port of Rotterdam went offline, and Finland and France and Denmark started pulling government sites, and Wikipedia went down, and Archive.org went down, and Asana and GOG and Something Awful went down, and the University of Vienna's webmail went down for some reason, and that's just PHP. Because GitLab also dropped a CVSS 10.0, which is the highest score they give out, for a bug that's been there since 2014, so that's every self-hosted GitLab for twelve years, and then LiteLLM 1.107.0 got hijacked and shipped a credential stealer and a remote access trojan in every single wheel and the Docker images, including latest, and you didn't even have to import it, just installing it was enough, and it's the second time this year, and then Railway paused every deployment on the entire platform because someone got into the environment variables, so now everyone has to rotate every secret they've ever stored there, and TiDB Cloud said someone was walking around inside with stolen credentials for basically a month and an extortion group says they took 10.6 terabytes, and Zeabur got breached for the second time in two months and is just shutting down, like the whole company, and Node.js patched remote code execution and a TLS bypass, and CISA says Plex is being actively exploited, and someone took over 300 Tor exit relays to steal SSH passwords, and SafePay ransomware has hit over 600 critical infrastructure orgs, and India's biggest bank filed a data loss incident, and Japan has been in an official state of emergency in cyberspace since October 9, which honestly explains the 5:55 AM post. Oh, and eMudhra, a certificate authority that's issued over 60 million certificates, whose entire job is proving websites are who they say they are, was supposed to be using private keys that are random numbers over a hundred digits long, and one of them was 4. Just 4. And the others were like 66 and 237. Anyway, it's Wednesday.
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Marcelo Fernandez retweeted
Okay, since the news is already out: an RCE vulnerability in PHP core, CVSS 10.0. Further details are scheduled for release on October 20. Only PHP 8 will receive patches.
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Marcelo Fernandez retweeted
Mando a la B a independiente, salió campeón de América con San Lorenzo, campeón de América y del Mundo con Argentina y jugó 10 años en el Atlético Madrid Se enteró que Correa era cosa seria porque hizo un par de goles en River
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Marcelo Fernandez retweeted
Hoy lanzamos un gran update de municipiosargentinos.net. Ya mide a los 2.280 municipios y comunas de todo el país. Abajo lo nuevo 🧵👇
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