Greg Foss Follow. Principal Cloud Security Researcher. Cloud Crime Ops. Future of Destructive Malware. Phishing Intelligence Engine - BlueHat v Security Automation and Orchestration. Threat Intelligence Field of Dreams. Deception Driven Defense - Infragard Related Books Free with a 30 day trial from Scribd. Related Audiobooks Free with a 30 day trial from Scribd.
Elizabeth Howell. Attacking Drupal 1. Foss [at] LogRhythm. Company Confidential what 4. Company Confidential think like the bad guys… how 6. Company Confidential question… 7.
Company Confidential NO 8. Company Confidential Company Confidential GitHub queries Company Confidential remediation Company Confidential necessary access Company Confidential Authentication Company Confidential forgot password abuse Company Confidential user enumeration Company Confidential dictionary attacks — drupal 6 Company Confidential dictionary attacks — drupal 7 Company Confidential dictionary attacks with Hydra — Drupal 6 Company Confidential dictionary attacks with Hydra — Drupal 7 Company Confidential user enumeration — watchdog logs Company Confidential dictionary attack — watchdog logs Company Confidential comments — persistent XSS Company Confidential comments — XSS cookie theft Company Confidential persistent XSS — everywhere!
Company Confidential reflected XSS — even more common! Company Confidential lock down permitted file types Company Confidential devel — account info disclosure Company Confidential devel — scraping account info Company Confidential devel — account disclosure — log traces Company Confidential cracking Drupal 7 hashes Company Confidential devel — PHP code execution Company Confidential 1.
Integrate your security team early on in the development process to assure that your needs can be met in an acceptable timeframe. Drupal security checklist Company Confidential 2.
Harden the application and server architecture. Company Confidential 3. Disallow weak passwords for privileged users and enforce a strong password policy. Company Confidential 4. Implement Server, Application, and Drupal logging. Company Confidential 5. Hashing is a one-way cryptographic process. When a user attempts to log in, the application will hash the attempted password and check whether it matches the stored hash.
An ideal hashing algorithm produces output that appears random. In order to determine the password, an attacker has to try to encrypt every possible password, comparing the resulting hash with the hash that they want to crack.
They can improve their odds a bit by limiting their attempts to passwords that humans would likely use—e. For a long time, these process was deemed sufficient. To solve this, applications started using salt. Both the password and the salt serve as input to the hashing function. Two users might have the same password, but they should have different salts, so the hashes will be different.
When the user tries to log in, the salt—which is saved as plaintext in the database—is included in the input to the hashing algorithm. In NCL, you may see both standalone hashes and salted hashes. Although best practices dictate that salted hashes should be used, simple hashes are still used by some applications, often for compatibility reasons.
Typically, passwords are cracked with the help of word lists. These are giant text files containing lists of possible passwords. In more advanced scenarios, a word list may contain common password roots, and the password cracking utility modifies them in some way—for example, by appending sequential numbers to each password.
Making good word lists is an art in its own right. In , word spread that RockYou had been hacked. To do this, add each hash to your hashes. Make sure to trim any excess white space. These are plain MD5 hashes. MD5 is an archaic hashing algorithm; it should never be used for securing sensitive data such as passwords, but, unfortunately, many applications still use it for that purpose.
In the PowerShell prompt from earlier, type the following and press Enter. Pay extra careful attention to punctuation and whitespace. The portion on the left of each line is the hash, and the portion on the right is the corresponding password.
Replaces the contents of your hashes. However, what if we know that a password follows a specific format? In that case, word lists might not be ideal. Breaking down the components:. No dice. We could wait for hashcat to try every password in rockyou. Press the S key on your keyboard to get a status update from hashcat:. Depending on your hardware, your estimated time remaining might be far higher than that. Our new command will look like this:. Run the command. Here are a selection of links to essential resources on advanced topics:.
I enjoyed the article and will probably read it again before doing hashcat stuff. Thanks for writing it. Like Like. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. This site uses Akismet to reduce spam. Learn how your comment data is processed. February 24, October 6,
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