UNDERCODE COMMUNITY
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๐Ÿฆ‘ Undercode Cyber World!
@UndercodeCommunity


1๏ธโƒฃ World first platform which Collect & Analyzes every New hacking method.
+ AI Pratice
@Undercode_Testing

2๏ธโƒฃ Cyber & Tech NEWS:
@Undercode_News

3๏ธโƒฃ CVE @Daily_CVE

โœจ Web & Services:
โ†’ Undercode.help
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Forwarded from Exploiting Crew (Pr1vAt3)
๐Ÿฆ‘๐„๐ฅ๐ž๐ฏ๐š๐ญ๐ž ๐˜๐จ๐ฎ๐ซ ๐“๐ž๐œ๐ก ๐‰๐จ๐ฎ๐ซ๐ง๐ž๐ฒ: ๐„๐ฌ๐ฌ๐ž๐ง๐ญ๐ข๐š๐ฅ ๐‘๐ž๐ฌ๐จ๐ฎ๐ซ๐œ๐ž๐ฌ ๐Ÿ๐จ๐ซ ๐†๐ซ๐จ๐ฐ๐ญ๐ก ๐š๐ง๐ ๐‚๐ž๐ซ๐ญ๐ข๐Ÿ๐ข๐œ๐š๐ญ๐ข๐จ๐ง ๐’๐ฎ๐œ๐œ๐ž๐ฌ๐ฌ
Whether youโ€™re looking to break into tech, grow your expertise, or prepare for certifications, use these resources to help you level up:

๐ŸŽฏ Microsoft Learn: https://lnkd.in/ge973G3j
Explore interactive, self-paced modules on Azure, Microsoft 365, Power Platform, and more.

๐ŸŽฏ Microsoft Virtual Training Days: https://lnkd.in/g2B_2Yq3
Free, instructor-led events with opportunities to earn free certification exam vouchers!

๐ŸŽฏ GitHub Learning Lab: https://lab.github.com/
Dive into Git basics, open-source contributions, and DevOps workflows.

๐ŸŽฏ Microsoft Educator Center: https://lnkd.in/gFcX5xdm
Focused on education technology, this resource is excellent for educators learning Teams and Office 365 tools.

๐ŸŽฏ Azure DevOps Labs: https://lnkd.in/gi4uekjB
Get practical experience with CI/CD pipelines, infrastructure as code, and governanceโ€”all for free!

๐ŸŽฏ AI for Good & Responsible AI Training: https://lnkd.in/gtXfexiY
Learn about cutting-edge AI applications and ethical AI practices.

Ref: Mohamad Hamadi
@UndercodeCommunity
โ– โ–‚ โ–„ U๐•Ÿ๐”ปโ’บ๐ซฤ†๐”ฌ๐““โ“” โ–„ โ–‚ โ–
Forwarded from Exploiting Crew (Pr1vAt3)
Forwarded from Exploiting Crew (Pr1vAt3)
๐Ÿฆ‘๐‡๐จ๐ฐ ๐€๐ญ๐ญ๐š๐œ๐ค๐ž๐ซ๐ฌ ๐‡๐š๐œ๐ค ๐‚๐ˆ/๐‚๐ƒ ๐๐ข๐ฉ๐ž๐ฅ๐ข๐ง๐ž๐ฌ ๐Ÿ‘‡

I recently watched one of DEFCON's talk of this year "Your CI CD Pipeline Is Vulnerable, But It's Not Your Fault" by Elad Pticha, Oreen Livni and was really impressed by the attack vector (link in comments)

๐‹๐ž๐ญ'๐ฌ ๐ฌ๐ž๐ž ๐ก๐จ๐ฐ ๐ข๐ญ ๐ฐ๐จ๐ซ๐ค๐ฌ

Github workflows are part of the CI/CD (Continous Integration/Continous Deployment) ecosystem that lets developers automate their workflow

For example: once a commit is made to the repo -> the code is scanned with a tool -> if the tests pass -> code is pushed to test/production

Now the interesting part is that (if the repo maintainer uses input that you control) inside the workflow, this can lead to command injection in the pipeline

๐–๐ก๐ข๐œ๐ก ๐ฆ๐ž๐š๐ง๐ฌ ๐ฒ๐จ๐ฎ ๐ฆ๐š๐ฒ ๐›๐ž ๐š๐›๐ฅ๐ž ๐ญ๐จ ๐ญ๐š๐ค๐ž ๐จ๐ฏ๐ž๐ซ ๐ญ๐ก๐ž ๐ซ๐ž๐ฉ๐จ

In the example bellow, the pipeline uses the title of an issue as part of a bash echo command

That means anyone can create a issue named $(๐ฐ๐ก๐จ๐š๐ฆ๐ข) and execute commands in the CI/CD

If you can do that -> you can abuse the command injection to steal the repo's Github token, read secrets or push malicious code

Ref: Andrei Agape
@UndercodeCommunity
โ– โ–‚ โ–„ U๐•Ÿ๐”ปโ’บ๐ซฤ†๐”ฌ๐““โ“” โ–„ โ–‚ โ–
Forwarded from Exploiting Crew (Pr1vAt3)
1734579716223.pdf
491.1 KB
Forwarded from UNDERCODE TESTING
๐Ÿฆ‘๐Ÿ”Cracking the Secrets of JWT Hacking ๐Ÿ”

Are you ready to uncover the vulnerabilities in JSON Web Tokens (JWTs) and learn how to secure them effectively? ๐ŸŒ Hereโ€™s a detailed guide on JWT hacking and best practices to safeguard them:

๐Ÿ’ก Common JWT Vulnerabilities:

1๏ธโƒฃ Weak Signing Algorithm (e.g., none): Exploiting algorithms like HS256 or RS256 with insecure configurations.
2๏ธโƒฃ Key Disclosure: Using predictable or publicly exposed keys for token signing.
3๏ธโƒฃ JWT Manipulation: Modifying the header or payload to escalate privileges or bypass authentication.
4๏ธโƒฃ Lack of Expiration: Tokens without expiry enable unauthorized access for extended periods.
5๏ธโƒฃ Insufficient Signature Validation: Failure to properly validate JWT signatures.

๐Ÿ› ๏ธ JWT Hacking Techniques:
โ€ข Header Tampering: Altering the algorithm to โ€œnoneโ€ to bypass signature verification.
โ€ข Key Cracking: Brute-forcing weak or mismanaged secrets.
โ€ข Replay Attacks: Reusing captured tokens to impersonate users.
โ€ข Payload Tampering: Modifying claims (e.g., admin: true) to escalate privileges.
โ€ข Algorithm Downgrade Attacks: Switching from a strong algorithm (RS256) to a weaker one (HS256) if the server mishandles keys.
โ€ข Client-Side Storage Exploitation: Stealing tokens stored in localStorage or sessionStorage via XSS.

โœ… How to Secure JWTs:

๐Ÿ”’ Use Strong Algorithms: Always use strong algorithms like RS256 with secure key management.
โณ Set Expiry Times: Define short-lived tokens with the exp claim to reduce exposure.
๐Ÿ“œ Enforce Algorithm Validation: Ensure the server validates the specified algorithm and rejects โ€œnone.โ€
๐Ÿ”‘ Implement Secure Key Storage: Store signing keys securely (e.g., in environment variables or vaults).
๐Ÿ” Monitor Token Usage: Log and monitor API requests for anomalies or unusual token behavior.
๐Ÿ”„ Rotate Secrets Regularly: Frequently update your keys to limit exposure in case of leaks.
๐Ÿงฑ Protect Client-Side Storage: Use HTTP-only, Secure cookies instead of localStorage or sessionStorage.

๐Ÿ’ป Top Tools for JWT Testing:

๐Ÿ› ๏ธ jwt.io โ€“ Decode, debug, and test tokens.
๐Ÿ› ๏ธ Burp Suite โ€“ Intercept API requests and test JWT-based flows.
๐Ÿ› ๏ธ Postman โ€“ Manual testing for API endpoints using JWT.
๐Ÿ› ๏ธ HackTools โ€“ A browser extension with JWT cracking utilities.
๐Ÿ› ๏ธ John the Ripper โ€“ Brute-force JWT secrets.
๐Ÿ› ๏ธ JARM Tool โ€“ Analyze JWT for misconfigurations and vulnerabilities.

๐Ÿ”— Additional Tips:

๐Ÿ”ต Avoid storing sensitive data directly in the JWT payload, even if encrypted.
๐Ÿ”ต Validate tokens at every API endpoint.
๐Ÿ”ต Beware of Cross-Site Scripting (XSS) attacks that could expose JWTs.

๐Ÿ” JSON Web Tokens (JWTs) are powerful tools for modern applications, but they come with risks. Whether youโ€™re a developer or penetration tester, mastering JWT security is critical for keeping your systems safe. ๐Ÿš€

Ref: in pdf
@UndercodeCommunity
โ– โ–‚ โ–„ U๐•Ÿ๐”ปโ’บ๐ซฤ†๐”ฌ๐““โ“” โ–„ โ–‚ โ–
Forwarded from UNDERCODE TESTING
Forwarded from Exploiting Crew (Pr1vAt3)
Azure Firewall.pdf
1 MB
Forwarded from Exploiting Crew (Pr1vAt3)
๐Ÿฆ‘๐ŸŸฅ๐ŸŸฅAzure Firewall ๐ŸŸฅ๐ŸŸฅ

๐Ÿš€ Azure Firewall is a stateful, cloud-native network security service designed to secure your Azure workloads and ensure compliance in todayโ€™s threat-laden digital landscape.

๐Ÿ”‘ Key Features You Need to Know:
1๏ธโƒฃ Application and Network Rule Filtering
โ€ข Define rules based on FQDNs, ports, and protocols to control inbound and outbound traffic.
โ€ข Layer 7 filtering for advanced application-level protection.

2๏ธโƒฃ Threat Intelligence-Based Filtering
โ€ข Leverage Microsoft Threat Intelligence to block malicious IPs and domains automatically.
โ€ข Get real-time threat updates for proactive defense.

3๏ธโƒฃ Built-in High Availability
โ€ข No need for load balancersโ€”Azure Firewall is built for redundancy and 99.95% SLA.

4๏ธโƒฃ Dynamic Scalability
โ€ข Scales automatically to handle high traffic volumes, ensuring uninterrupted security.

5๏ธโƒฃ Centralized Policy Management
โ€ข Manage security policies across multiple Azure Firewalls using Azure Firewall Manager.

6๏ธโƒฃ Logging and Analytics
โ€ข Monitor traffic patterns with deep logging and analytics in Azure Monitor and Sentinel.

7๏ธโƒฃ Hybrid and Multi-Cloud Support
โ€ข Secure traffic between on-premises, Azure, and other cloud providers using ExpressRoute and VPN Gateway.

๐Ÿ’ก Advanced Scenarios with Azure Firewall:
โœ” Network Address Translation (NAT): Protect public-facing services with DNAT/SNAT rules.
โœ” Integration with Private Link: Secure connections to Azure PaaS services.
โœ” Zero Trust Network Security: Enforce strict segmentation and access controls.

๐Ÿ“ˆ Why Choose Azure Firewall?
๐Ÿ”’ Enterprise-grade security with TLS inspection and IDPS (Intrusion Detection & Prevention System).
๐ŸŒ Globally distributed for large-scale enterprise needs.
โšก Effortless integration with Azure Security Center, Azure Virtual WAN, and Third-party SIEM tools.

Ref: Mahesh Girhe
@UndercodeCommunity
โ– โ–‚ โ–„ U๐•Ÿ๐”ปโ’บ๐ซฤ†๐”ฌ๐““โ“” โ–„ โ–‚ โ–