Aardwolf Security's Expert Code Review Services
                     Secure Code Review 
Code reviews are perhaps the most effective technique for identifying 
security flaws, particularly when used together with automated tools 
and manual penetration testing techniques. Code reviews can help 
uncover functionality issues that are currently not in use by the 
program or web application. 
Security based code reviews can greatly benefit a business as it allows 
for areas of the program or application to be analysed that may have 
otherwise been inaccessible via penetration testing techniques. 
 
1 
What is a secure code
review 
A secure code review is a process where security experts analyze source or 
compiled code to identify potential security vulnerabilities. The goal of a secure 
code review is to provide an independent assessment of the security posture of 
software and make recommendations for improving the security posture of an 
application. 
Secure code reviews are an essential part of software security assurance and 
can help identify potential security vulnerabilities that could be exploited by 
attackers. Code reviews can also help assess the effectiveness of security 
controls in place, such as input validation and output encoding. When conducted 
properly, code reviews can be an effective way to improve the security of 
software 
2 
 Why is Secure Code
Review Important?                              
Identifies Hidden Vulnerabilities: Detects logic errors and security 
flaws that may not be accessible via black-box or grey-box penetration 
testing. 
Validates Security Controls: Ensures that practices such as input 
validation, output encoding, and authentication mechanisms are effectively 
implemented. 
Improves Software Security: Mitigates the risk of exploitation by 
malicious actors. 
Supports Compliance: Aligns with regulatory and industry standards 
requiring secure development practices. 
3 
When Should a Secure 
Code Review Be 
Conducted? 
 
 Early in Development: Easier and cheaper to fix issues before code 
is deployed. 
 After Major Changes: Ensures that new features or updates haven’t 
introduced vulnerabilities. 
 Before Release: Final security verification step before going to 
production. 
 On an Ongoing Basis: Periodic reviews help maintain a high level of 
security over time. 
4 
 Types of Secure Code
Review 
 
 
A. Static Code Analysis 
1. Utilizes automated tools to scan the source code. 
2. Quickly identifies common vulnerabilities like: 
a. SQL Injection 
b. Cross-Site Scripting (XSS) 
c. Buffer overflows 
 Pros: Fast, consistent, good for large codebases. 
 Cons: May produce false positives/negatives. 
B. Manual Code Review 
1. Conducted line-by-line by experienced security 
professionals. 
2. Focuses on: 
a. Business logic flaws 
b. Improper error handling 
c. Insecure coding practices (e.g., hardcoded credentials) 
3. Pros: Deep, contextual understanding of code logic. 
4. Cons: Time-consuming and requires skilled personnel. 
C. Interactive (Dynamic) Code Review 
1. Performed in collaboration with developers. 
2. Focuses on real-time interactions and understanding code behavior in 
specific use cases. 
5 
 Benefits of Secure Code
Review 
 
1.  Early Detection of Security Issues: Allows for cost-effective fixes and 
prevents future breaches. 
2.  Improved Code Quality: Increases the overall quality, structure, and 
readability of the code. 
3.  Enhanced Collaboration and Trust: Builds better teamwork and 
communication between developers and security teams. 
4.  Better Risk Management: Provides a clearer picture of software security 
posture and areas of concern. 
6 
How Secure Code Reviews
Are Conducted 
 
 Scoping: 
 Determine objectives, codebase size, technologies, and critical areas. 
 Tool-Based Static Analysis: 
 Initial scan using static analysis tools to find known issues. 
 Manual Review: 
 Security experts inspect code logic, flow, and architecture. 
 Interactive Review (Optional): 
 Real-time discussions with developers to explore specific functionalities. 
 Vulnerability Identification: 
 Look for common issues: XSS, SQLi, CSRF, insecure APIs, weak 
encryption, etc. 
 Mitigation & Remediation Support: 
 Recommend solutions and assist with secure coding practices. 
 Retesting: 
 Validate whether fixes have resolved the vulnerabilities and introduced no 
new ones. 
 Reporting: 
 Provide a detailed report of findings, risk assessments, and remediation 
steps. 
 
 
 
Contact us 
Phone Email 
01908 733540  [email protected]