How does an enterprise carry out security testing offensive and defensive combat!

In today's digital age, enterprises are inseparable from informatization and networking, and the threats brought by informatization and networking are real. Security covers a wide range, such as network security, data security, application security, host security, intranet security, and so on.

In order to ensure the security of enterprise information, it is essential to carry out security testing attack and defense. This article will guide enterprises on how to carry out security testing offensive and defensive combat, and introduce security testing methods, tools, cases, etc.

1. What are the security testing methods?

1.1 Penetration testing

Penetration testing, also called vulnerability assessment, refers to a testing process that simulates hackers attacking corporate networks and systems, discovers vulnerabilities, evaluates security, and improves security precautions. Penetration testing is divided into black box testing and white box testing.

Enterprises can adopt two methods of white box testing and black box testing for security penetration testing:

白盒测试: Testers know the internal structure and code of the system, and can conduct in-depth tests for key logic and data flow. Commonly used for internal source code auditing and penetration testing.
黑盒测试: There is no system internal information, and the system is detected and attacked through external scanning. Commonly used in peripheral security and cloud security detection.

1.2 Intrusion detection test

Intrusion detection test refers to a test that finds abnormal traffic in the network and analyzes its purpose, source, behavior, etc. Through the analysis of abnormal traffic, detect whether there is an intrusion event, and provide corresponding solutions.

1.3 Malware testing

Malware testing refers to a testing process that uses simulated malware to attack the corporate network, find traces of malware attacks, and improve the enterprise's ability to prevent malware.

2. Security testing tools

2.1 Network Scanner Tool

A network scanner is a program used to identify devices on a network and the services and ports running on them. Commonly used network scanner tools include Nmap, Zmap, etc.

2.2 Vulnerability Scanner Tool

A vulnerability scanner is an automated testing tool that uses the results of a network scan to find previously known vulnerabilities and identify security risks to systems and devices on the network. Commonly used vulnerability scanner tools include OpenVAS, Burp Suite, etc.

2.3 Penetration testing tools

Penetration testing tools refer to a tool used to evaluate the security of an enterprise, discover vulnerabilities by simulating hacker attacks, evaluate security, and improve security precautions. Commonly used penetration testing tools include Metasploit, Kali Linux, etc.

2.4 Malware Analysis Tools

Malware analysis tools can identify malware distribution channels and attackers' attack methods by analyzing and detecting the characteristics of malware. Common malware analysis tools include IDA, Ollydbg, etc.

Common security tool combinations:

- Nmap:端口扫描与系统指纹识别
- Acunetix:Web应用程序渗透测试
- Metasploit:漏洞利用与渗透测试框架
- Wireshark:网络抓包与分析
- Hashcat:密码破解
- Cobalt Strike:红队攻击模拟工具

3. Safety testing means

Commonly used detection methods include:

Port and service scanning: Use port scanning tools to scan the hosts of the enterprise to check their open ports and services in use.
Web application scanning: Use a web application scanner to scan the corporate website for possible vulnerabilities.
Vulnerability Exploitation Verification: Try to exploit known vulnerabilities to attack and verify whether the attack is successful.
Sniffing traffic analysis: Use sniffing software to capture and analyze network communications to check whether there are security problems.
Reverse engineering analysis: Reverse engineering analysis can analyze the internal structure of software or application programs to check potential vulnerabilities and security risks.
Vulnerability scanning: use open source tools to scan for vulnerabilities on web/mobile/system, etc.
Threat intelligence analysis: analyze threat reports, attack components, etc. related to the enterprise, and assess risks.
Social engineering test: Attempt to obtain enterprise internal data or phishing link intrusion through social engineering means.
DDoS test: Carry out DDoS simulation attacks on key systems/businesses of enterprises, and detect protective measures.
APT simulation: Simulate APT gangs intruding into key systems of enterprises through various means to test APT detection and response.

4. Case

In order to more vividly demonstrate the specific use cases of enterprise security testing, I will provide you with several actual security cases.

Case 1: Penetration testing

To ensure system security, a bank entrusts a security testing team to conduct penetration testing. The testers first used the attack-type intranet test to launch an attack on the hosts in the network, and found that the database was in an accessible state, and could directly change the password of a specific account by using a simple SQL vulnerability, obtain the remote desktop and control the server. In further tests, the testers found that there were weak passwords on the website, and they could try to use methods such as password blasting to attack. Finally, the security testing team summarized and analyzed the test results, put forward effective suggestions to improve network security protection, and gave feedback to the bank throughout the process, so that they can further improve security measures.

Case 2: Vulnerability Scanning

An e-commerce company conducts security testing on internal systems and focuses its vulnerability scanning tools on internal applications. The scanning results showed that there were CSRF attacks and XSS code injection vulnerabilities in the company's internal applications. The security testers immediately made recommendations to the IT department and pointed out that the vulnerabilities would threaten the company's internalization and data. The IT department took action and the application was fixed and improved. Ultimately, the vulnerability scanning tool was tested again, and the results showed that all vulnerabilities had been addressed and the security of the application was guaranteed.

In addition to traditional methods, red team and blue team simulations can also be used for security testing. The red team tries to attack and enter the system to gain control, and the blue team conducts defense and detection. Real attack scenarios can be simulated to the greatest extent.

Case 3: Red and blue attack and defense case

Every year, the company invites third-party red teams to conduct APT simulation attacks to detect weak points in the enterprise security system. The red team will establish an attack path through public information collection, and gain internal access through email phishing or vulnerability exploitation. Then lateral penetration to obtain high authority, simulate data destruction or theft.

The blue team will use WAF, NIDS and other technologies to detect and intercept anomalies. Monitor high-risk operations through SIEM and DLP systems, and conduct threat case analysis and emergency response. In addition, the blue team will also conduct a reverse analysis of the attack methods of the red team, and integrate patches and IOCs into daily protection.

This red-blue confrontation not only tested the weak points in the security system, but also honed the blue team's security emergency and counterattack capabilities. Effectively improve the comprehensive safety operation level of the enterprise.

5 Conclusion

Security testing attack and defense is an important means to ensure enterprise information security. The application scenarios and business requirements of each enterprise are different, and the security testing will also be different. Therefore, a complete and effective security testing needs to be carried out according to the actual situation. Therefore, the security testing team needs to select appropriate testing methods and tools according to different business scenarios in order to maximize the security of enterprise information assets. It is also necessary to analyze and summarize the test results, continuously improve security defense measures, and improve the level of enterprise information security.

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