Head of CSIRT @OVHcloud trying to make the Internet a better place. Now on Bluesky: smeriot
Lille, France
Joined November 2009
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It's time for me to leave Twitter/X.
My Bluesky account : @smeriot.bluesky.social
We just published a guide for DFIR teams to perform forensics on Public Cloud instances in case of 🙂
Would you like to carry out an investigation within your #PublicCloud instance?
#OVHcloudsupport can help you gather the clues you need for your diagnosis.
Find our guide to recovering the data you need for your investigations 👇
help.ovhcloud.com/csm/en-gb-…
We are observing a sharp increase of #DDoS in 2024 at @OVHcloud with a new record of 840Mpps received in April. We decided to share few insights in a blog post:
blog.ovhcloud.com/the-rise-o…
In addition to the doc, Downfall support has been added to the spectre-meltdown-checker script to check your exposure:
github.com/speed47/spectre-m…
When SMS MFA is a cost, just make it a paid feature 😒
It seems you can switch to another factor without getting "Blue" (actually it does fail with an unknown error 😅)
Sébastien Mériot retweeted
My new post explains how a disk image can be taken from a virtual machine running on the public cloud. The disk image can then be used with the offline forensic tools like Autopsy and Encase. blog.gaborszathmari.me/takin…
Sébastien Mériot retweeted
🚨 Apache has disclosed an *actively exploited* Path traversal flaw in the #opensource "httpd" server. Over 112,000 exposed Apache servers run version 2.4.49, and should be upgraded now!
New fix checks for encoded path traversal characters e.g. /../.%2E/
blog.sonatype.com/apache-ser…
Sébastien Mériot retweeted
Making sense of #PrintNightmare. A flowchart to help understand exploitation of CVE-2021-34527.
Special thanks to @tiraniddo, @dez_, @gentilkiwi and @_f0rgetting_ for their test input and insights.
Très bon article qui remet en perspective la notion de gestion du risque !
Après l'incendie ayant touché OVH, voici notre analyse de risque et notre réponse à la question « Faut-il quitter OVH ? »
blog.cozy.io/fr/faut-il-quit…
Sébastien Mériot retweeted
Many thanks for all the empathy messages you sent us today ! I want to thank the teams who have been working all night/day.
It’s been the worst day for the last 22y and there is no word strong enough to say how sorry I feel today.
We keep working hard to restart SBG1/3/4 asap!
Microsoft just released 4 critical vulnerability affecting Exchange (RCE in EWS/ECP once again).
Details & IOCs can be found here:
volexity.com/blog/2021/03/02…
Great tips to deal with #phishing kit using Telegram 👍
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Egregor Ransom Note printed in LATAM Supermarkets... 🙄
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Sébastien Mériot retweeted
Our line up of talks is now public on the conference website and you can register to attend #Botconf2020 online
botconf.eu/botconf-2020/sche…
Sébastien Mériot retweeted
Ransomware : attention à l'extraterritorialité des sanctions américaines ! latribune.fr/opinions/ransom…
