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Kizomba Connection U Group

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Artemy Bobylev
Artemy Bobylev

MongoDB Data At Rest Encryption Using ECryptFS

The underlying encryption mechanism in the kernel, which is integrated into the above file systems, is also sometimes called "fscrypt". To avoid ambiguity, this article calls the kernel feature "Linux native file encryption". With Linux native file encryption, different directories can use different encryption keys. In an encrypted directory, all file contents, filenames, and symlinks are encrypted. All subdirectories are encrypted too. Non-filename metadata, such as timestamps, the sizes and number of files, and extended attributes, is not encrypted.

MongoDB Data at Rest Encryption Using eCryptFS

I agree with your point. The /var/lib/mongodb-encrypted folder is always in decrypted state and the /etc/mongod.conf file will give away the location of the source files.How this procedure ensures that it keeps the data safeguarded as a replacement for Wired-tiger?

I'm looking to design a webapp which stores private information securely using MongoDB. I would like to encrypt the entire database but it looks like it's not supported. What routes can I take to encrypt my database?

It works with the WiredTiger storage engine, which has been the included as an alternative to the default MMAPv1 storage engine since 3.0. If your database is still using MMAPv1, read this guide for the steps to convert a database from MMAPv1 to WiredTiger.

MongoDB doesn't support this directly, but Gazzang's Encryption & Key Management Platform has been specifically tailored for MongoDB (though it works with other NOSQL database systems too). It's is a commercial solution built on top of the open source eCryptfs encrypted filesystem in Linux, and it performs the encryption on the underlying filesystem in a way that security is maximized with minimal adverse effects on performance.

I would recommend that you use LUKS to encrypt your data volume. It is fairly simple to setup and manage compared to file system based encryption. It is also portable to various flavors of Linux and also has flexibility to let you change your password. If you need a solution out of the box encryption support provides this feature in the mongodb cluster creation wizard

Aptible encrypts your data at the disk level. This means that, to rotate the key used to encrypt your data, all data needs to rewritten on disk using a new key. If you're not using Custom Database Encryption, you can do so by dumping the data from your database, then writing it to a new database, which will use a different key.

Volumes are encrypted at rest, which means that the data on a Volume is not readable outside of its storage cluster. When you attach a Volume to a Droplet, the Droplet is presented with a decrypted block storage device and all data is transmitted over isolated networks.

The leet challenges started on day 20, but then followed an additional three hard challenges before the second and final leet one. These were all really good challenges. My favorite was a binary and a PCAP of an attacker exploiting the binary, where I needed to reverse the crypto operations in the binary and the exploit to recover the data that was stolen. I really liked one that was another polyglot file where an image turned into an HTML page that dropped a Python script which pull out a docker image containing images that contained a flag. There was also more web exploitation of a Tomcat deserialization CVE, a really interesting ELF reversing challenge, and pulling data from an iOS backup.

BigHead required you to earn your 50 points. The enumeration was a ton. There was an really fun but challenging buffer overflow to get initial access. Then some pivoting across the same host using SSH and the a php vulnerability. And then finding a hidden KeePass database with a keyfile in an ADS stream which gave me the root flag.

This phishing document was interesting for not only its lure / cover, but also for the way it used encryption to target users who had a domain with certain key words in it. While brute forcing the domains only results in some potentially financial key words, the stage 2 domain acts as a pivot to find an original phish email in VT, which shows this was quite targeted after all.


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