OWASP TOP 10
SANS 25

OWASP Top 10 vs SANS/CWE Top 25: Complete Security Vulnerabilities Guide [2024]

Pallavi Vishwakarma
November 6, 2024

Table of Contents

  • Understanding Web Security Standards
  • OWASP Top 10 Explained
  • SANS/CWE Top 25 In-Depth Analysis
  • Key Differences and Use Cases
  • FAQ

Understanding Web Security Standards

In today's cybersecurity landscape, two major security vulnerability rankings stand out: the OWASP Top 10 and the SANS/CWE Top 25. Understanding these standards is crucial for developers, security professionals, and organizations looking to protect their digital assets.

What is OWASP Top 10?

The OWASP (Open Web Application Security Project) Foundation, a respected nonprofit organization, maintains the OWASP Top 10 - a powerful awareness document focusing on the most critical web application security risks. This standard represents a consensus among security experts about the most significant web application vulnerabilities.

What is SANS/CWE Top 25?

The CWE (Common Weakness Enumeration) Top 25, developed by MITRE in partnership with the SANS Institute, provides a comprehensive ranking of the most dangerous software vulnerabilities. This list serves as a practical tool for organizations to prioritize their security efforts.

OWASP Top 10 Explained

1. Broken Access Control

Impact: Unauthorized data access, system compromise

  • Unauthorized information disclosure
  • Data modification or deletion
  • Business function exploitation

2. Cryptographic Failures

Risk Level: Critical

  • Exposed sensitive data
  • Compliance violations
  • Business reputation damage

3. Injection

Key Concerns:

  • SQL injection
  • Command injection
  • Cross-site scripting

4. Insecure Design

Insecure design is a broad category representing different weaknesses, expressed as “missing or ineffective control design.”

5. Security Misconfiguration

This group of dangers concerns the improper configuration of an application's security components. Individual mistakes are frequently at work here, such as leaving cloud storage buckets open or opening ports that are not necessary.

6. Vulnerable and Outdated Components

These vulnerabilities come from using out-of-date frameworks or libraries that are easy to exploit.

7. Identification and Authentication Failures

To safeguard against threats linked to authentication, it is essential to confirm the user's identity, authenticate them, and manage their sessions. If the program allows automated assaults like credential stuffing, in which the attacker has a list of legitimate users and passwords, there may be authentication flaws.

8. Software and Data Integrity Failures

Failures in code and infrastructure that do not provide integrity protection are related to software and data integrity issues. This can happen when an application depends on plugins, libraries, or modules from unreliable sources and repositories.

9. Security Logging and Monitoring Failures

Monitoring and logging contribute to security responsibility, event visibility, incident alerting, and forensics. Failures in these capabilities seriously impair your company's capacity to identify and address application security breaches.

10. Server-Side Request Forgery (SSRF)

SSRF vulnerabilities occur when a web application retrieves a remote resource without checking the user-supplied URL. Even when the program is shielded by a firewall, VPN, or another sort of network access control list, it enables an attacker to force the application to submit a forged request to an unexpected location (ACL).

SANS/CWE Top 25 In-Depth Analysis

Critical Memory Vulnerabilities

1. CWE-787: Out-of-bounds Write

  1. Buffer overflow risks
  2. System crashes
  3. Code execution vulnerabilities

2. CWE-125: Out-of-bounds Read

  1. Information leakage
  2. System stability issues
  3. Security bypass potential

3. CWE - 89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

When sending a SQL command to a downstream component, the program generates all or a portion of it using input that has been impacted externally by an upstream component, but it fails to neutralize or does so in a way that could cause the intended SQL command to be altered.

4. CWE - 20: Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validate that the input has the properties that are required to process the data safely and correctly.

5. CWE - 125: Out-of-bounds Read

The software reads data past the end, or before the beginning, of the intended buffer.

6. CWE - 78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The software builds all or a portion of an OS command using input that has been modified externally by an upstream component, but it fails to remove or removes them wrongly specific aspects that could change the intended OS command when it is sent to a downstream component.

7. CWE - 416: Use After Free

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

8. CWE - 22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The software constructs a pathname from external input to identify a file or directory that is beneath a restricted parent directory, but the pathname is not correctly neutralized to prevent it from resolving to a destination outside of the restricted directory.

9. CWE - 352: Cross-Site Request Forgery (CSRF)

The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

10. CWE - 434: Unrestricted Upload of File with Dangerous Type

The software allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment.

11. CWE - 476: NULL Pointer Dereference

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

12. CWE - 502: Deserialization of Untrusted Data

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

13. CWE - 190: Integer Overflow or Wraparound

When the logic in the software expects that the outcome will always be larger than the initial number, a calculation is performed that could result in an integer overflow or wraparound.

14. CWE - 287: Improper Authentication

When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

15. CWE - 798: Use of Hard-coded Credentials

The software contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data.

16. CWE - 862: Missing Authorization

The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

17. CWE - 77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

The software builds all or a portion of a command using input that has been influenced externally from an upstream component, but it fails to neutralize or does so in a way that could cause the intended command to be changed when it is sent to a downstream component.

18. CWE - 306: Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

19. CWE - 119: Improper Restriction of Operations within the Bounds of a Memory Buffer

The software operates on a memory buffer, but it has the ability to read from or write to memory locations that are outside the buffer's intended boundaries.

20. CWE - 276: Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

21. CWE - 918: Server-Side Request Forgery (SSRF)

The web server gets a URL or a request of a similar nature from an upstream component and obtains its contents, but it does not adequately verify that the request is being sent to the intended recipient.

22. CWE - 362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

A code sequence that can run concurrently with other code exists in the program, and while it needs temporary, exclusive access to a shared resource, there is a timing window in which the shared resource can be changed by another code sequence that is running concurrently.

23. CWE - 400: Uncontrolled Resource Consumption

The software's inability to effectively manage the allocation and upkeep of a finite resource allows an actor to affect how much of it is used, eventually exhausting the resource's supply.

24. CWE - 611: Improper Restriction of XML External Entity Reference

When an XML document is processed by the program, it may contain XML entities with URIs that resolve to documents outside of its intended control, which results in the product embedding false documents in its output.

25. CWE - 94: Improper Control of Generation of Code ('Code Injection')

The software creates all or a portion of a code segment using input that has been externally influenced by an upstream component, but it fails to remove or removes wrongly specific parts that could alter the syntax or behavior of the intended code segment.

Key Differences and Use Cases

OWASP vs CWE: Understanding the Scope

While both standards address security vulnerabilities, they serve different purposes:

  • OWASP Top 10:
    • Focuses on web application security
    • Provides high-level categorization
    • Perfect for web developers and security teams
  • SANS/CWE Top 25:
    • Covers broader software vulnerabilities
    • Offers detailed technical classifications
    • Ideal for software architects and security researchers 

However, as CWEs address software issues rather than just those related to web applications, they will occasionally have problems that don't fit into any of the OWASP Top 10 categories, as you can see below.

OWASP vs CWE

FAQ

Which standard should I follow for my web application?

Both standards are complementary. OWASP Top 10 provides an excellent starting point for web application security, while SANS/CWE Top 25 offers deeper technical insights.

How often are these standards updated?

OWASP typically updates its Top 10 list every 3-4 years, while the SANS/CWE Top 25 receives annual updates to reflect emerging threats.

Can these standards prevent all security vulnerabilities?

While following these standards significantly improves security posture, they should be part of a comprehensive security strategy rather than the only solution.

Conclusion

Understanding and implementing both OWASP Top 10 and SANS/CWE Top 25 provides a robust foundation for application security. While OWASP focuses on web application security risks, CWE offers a broader perspective on software vulnerabilities. Organizations should leverage both standards to create comprehensive security strategies.

SecOps Solution is a Full-stack Patch and Vulnerability Management Platform that helps organizations identify, prioritize, and remediate security vulnerabilities and misconfigurations in seconds.

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