Service Items

Why choose us?

Focus on cloud security services

"Cloud Summit" is a professional cloud information security service provider. The company has a group of professionals with profound knowledge in information security incident handling, hacker attack and defense, and hierarchical protection ..

Professional maintenance team

Our team members are all from the Internet industry and have many years of operation and maintenance experience. They focus on the security operation and maintenance of Windows and Linux servers, and are good at system security reinforcement, system optimization, and handling various difficult and miscellaneous problems

Tens of thousands of customer cases

At present, we charge more than 10000 users; More than 5000 servers have been maintained by our company; There are more than 300 servers with security settings made by our company; More than 3000 servers are using our manually configured environment ..

7 * 24 technical support

To provide 7 * 24 customer service, you can contact us through QQ, WeChat or telephone, so that you can enjoy high-quality, detailed and perfect after-sales service and technical support at any time.

Super long after-sales service

We provide 30 days of super long after-sales service to completely solve customer concerns. We always adhere to the principle of "charging only when we can solve the problem". We do not charge any fee for any problem that we cannot solve.

No charge if the problem cannot be solved

We do not charge any fees for problems that cannot be solved; In order to make you feel more secure, we provide 30 days of super long after-sales service for all problems, so that you have no worries

news information

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Threat warning
Technology sharing
Industry trends
  • Apache Tomcat remote code execution vulnerability (CVE-2025-24813)

    CVE-2025-24813 is a remote code execution (RCE) vulnerability that affects Apache Tomcat, allowing attackers to upload malicious serialized session files by sending a PUT request, and trigger deserialization through a GET request, thereby executing arbitrary code on the server. This vulnerability has been exploited in the field, and its utilization conditions are relatively simple. Tomcat only needs to use file storage sessions and support some PUT requests.

    Threat warning March 11, 2025
  • Troubleshooting and preventive measures for SQL injection

    SQL injection is a common security vulnerability. An attacker manipulates the database to perform unauthorized operations by injecting malicious SQL code. The following are the troubleshooting and prevention methods for SQL injection

    Technology sharing November 18, 2024
  • Security Bulletin on Remote Code Execution Vulnerability of Windows Remote Desktop Licensing Service

    On August 9, 2024, the National Information Security Vulnerability Sharing Platform (CNVD) included the remote code execution vulnerability of Windows Remote Desktop Licensing Service (CNVD-2024-34918, corresponding to CVE-2024-38077). An unauthenticated attacker can use the vulnerability to remotely execute code and gain server control privileges. At present, part of the technical principle and proof of concept pseudo code of the vulnerability have been disclosed, and the manufacturer has released a security update to complete the repair. CNVD recommends that the security of affected organizations and users be upgraded to the latest version immediately. 1、 Vulnerability analysis: The Windows Remote Desktop License Service (RDL) is Wi

    Threat warning August 10, 2024
  • Firewall software failure, alarm call in Massachusetts, USA was paralyzed

    Massachusetts emergency department officials said on the 19th that the state emergency service telephone "911" was paralyzed on the 18th because the system firewall software blocked people's incoming help calls.

    Industry trends June 20, 2024
  • Hackers infected 3300 websites by taking advantage of WordPress plug-in vulnerabilities

    Hackers are using vulnerabilities in the outdated version of Popup Builder plug-in to invade WordPress websites, infecting more than 3300 websites and injecting malicious code.

    The vulnerability exploited in the attack was traced as CVE-2023-6000, which is a cross site scripting (XSS) vulnerability that affects Popup Builder 4.2.3 and earlier, and was initially disclosed in November 2023.

    Threat warning April 8, 2024
  • French government website suffers the worst DDoS attack in history

    A statement issued by the French Prime Minister's Office on Monday confirmed that a series of DDoS attacks that began on Sunday night hit many government departments' websites, and the scale of the attacks was "unprecedented". On Tuesday, the Russian hacker group Anonymous Sudan claimed responsibility for large-scale distributed denial of service (DDoS) attacks on several French government websites. A large number of websites of French government institutions have been affected. "We launched a large-scale cyber attack on the infrastructure of the French Inter Governmental Digital Affairs Bureau (DINUM)," said the anonymous sultan on its official Telegram channel, "The digital endpoint of the French core government has been attacked, with great scope of damage." In addition to DINUM, the "anonymous sultan" confirmed in its post that the attack

    Industry trends March 15, 2024
  • Apache Tomcat remote code execution vulnerability (CVE-2025-24813)

    CVE-2025-24813 is a remote code execution (RCE) vulnerability that affects Apache Tomcat, allowing attackers to upload malicious serialized session files by sending a PUT request, and trigger deserialization through a GET request, thereby executing arbitrary code on the server. This vulnerability has been exploited in the field, and its utilization conditions are relatively simple. Tomcat only needs to use file storage sessions and support some PUT requests.

    Threat warning March 11, 2025
  • Security Bulletin on Remote Code Execution Vulnerability of Windows Remote Desktop Licensing Service

    On August 9, 2024, the National Information Security Vulnerability Sharing Platform (CNVD) included the remote code execution vulnerability of Windows Remote Desktop Licensing Service (CNVD-2024-34918, corresponding to CVE-2024-38077). An unauthenticated attacker can use the vulnerability to remotely execute code and gain server control privileges. At present, part of the technical principle and proof of concept pseudo code of the vulnerability have been disclosed, and the manufacturer has released a security update to complete the repair. CNVD recommends that the security of affected organizations and users be upgraded to the latest version immediately. 1、 Vulnerability analysis: The Windows Remote Desktop License Service (RDL) is Wi

    Threat warning August 10, 2024
  • Hackers infected 3300 websites by taking advantage of WordPress plug-in vulnerabilities

    Hackers are using vulnerabilities in the outdated version of Popup Builder plug-in to invade WordPress websites, infecting more than 3300 websites and injecting malicious code.

    The vulnerability exploited in the attack was traced as CVE-2023-6000, which is a cross site scripting (XSS) vulnerability that affects Popup Builder 4.2.3 and earlier, and was initially disclosed in November 2023.

    Threat warning April 8, 2024
  • Microsoft Announces January 2024 Security Update

    On January 10, Microsoft released its monthly security announcement in January 2024, fixing 53 security vulnerabilities in multiple products. Fixed Windows11、Windows 10、Windows Server 2022、Windows Server 2008、SharePoint Server 2019 And Office 2019. Using the above vulnerabilities, attackers can cheat, bypass security function restrictions, obtain sensitive information, elevate permissions, execute remote code, or launch denial of service attacks. CNVD reminds Microsoft users to download the patch update as soon as possible to avoid causing network security issues related to vulnerabilities

    Threat warning January 12, 2024
  • Atlassian Confluence remote code execution vulnerability (CVE-2021-26084)

    Atlassian Influence is a professional enterprise knowledge management and collaboration software produced by Atlassian, which can be used to build enterprise libraries, etc. On August 26, 2021, the official announcement of Atlas disclosed the remote code execution vulnerability of CVE-2021-26084 Atlas Influence. After authentication or without authentication in some scenarios, attackers can construct malicious requests, cause OGNL expression injection, and execute arbitrary code to control the server. Wuhan Cloud Summit Emergency Response Center reminds the Atlas Influence users to take security measures to prevent vulnerability attacks as soon as possible.

    Threat warning August 31, 2021
  • 32-bit Redis remote code execution vulnerability (CVE-2021-32761)

    Redis is a memory based high-speed key value pair database widely used in the world. On July 21, 2021, Redis officially announced that CVE-2021-32761 32-bit Redis remote code execution vulnerability was disclosed. In 32-bit Redis, an attacker can use the * BIT * command and the proto max bulk len configuration parameter in the case of unauthorized access to Redis, which may cause a shaping overflow and eventually lead to remote code execution. At present, there is no relevant script outflow, and the vulnerability only affects 32-bit Redis. Wuhan Cloud Summit Emergency Response Center reminds Redis users to take security measures to prevent vulnerability attacks as soon as possible.

    Threat warning August 31, 2021
  • Troubleshooting and preventive measures for SQL injection

    SQL injection is a common security vulnerability. An attacker manipulates the database to perform unauthorized operations by injecting malicious SQL code. The following are the troubleshooting and prevention methods for SQL injection

    Technology sharing November 18, 2024
  • 10 key points of enterprise cloud security capability building in 2024

    Cloud computing technology has brought many benefits for modern enterprise organizations, such as scalability, flexibility, reduction of physical infrastructure, reduction of operating costs, and all-weather data access. However, research data also shows that only 4% of enterprise organizations can provide adequate security protection for cloud assets. In 2023, more than 80% of data leakage events will involve data stored in the cloud. In order to improve the protection level of cloud security, enterprises need to focus on strengthening the security measures for cloud applications and data in 2024. This article has collected and sorted out 10 key points in cloud security construction, which can better protect the organization's cloud assets and ensure the security and availability of data.

    Technology sharing January 13, 2024
  • 10 suggestions for enterprises to avoid data loss

    With the rapid development of the Internet, a large number of data are constantly generated, accompanied by how to store, retrieve and manage them safely and effectively. Effective storage, efficient access, convenient sharing and security control of data have become a very important issue in the information age. The significance of data backup is that when network attacks, intrusions, power failures or operational errors occur, the original system can be completely, quickly, simply and reliably restored to ensure the normal operation of the system within a certain range. Here are 10 suggestions from Wuhan Cloud Summit based on years of practical experience.

    Technology sharing September 2, 2023
  • How to let the server program obtain the user's real access IP after access to advanced anti DDoS

    In many cases, our website is not simply a direct route from the user's browser to your server. Considering the website's access speed, security and other attributes, we may add advanced anti DDoS IP, advanced anti DDoS CDN, or access other security products in the reverse proxy mode.

    Technology sharing August 26, 2023
  • Apache Dubbo deserialization vulnerability CVE-2020-1948 patch bypassed

    On June 29, 2020, Wuhan Cloud Summit monitored that Apache Dubbo GitHub officially released Pull requests to fix the circumvention of the CVE-2020-1948 vulnerability patch. Dubbo<=2.7.7 still has a deserialization vulnerability. At present, no new version has been officially released. The vulnerability is of 0day level, which is extremely risky. Vulnerability description Apache Dubbo is a widely used Java RPC distributed service framework. On June 23, 2020, Apache Dubbo disclosed that there was a remote code execution vulnerability in deserialization in Dubbo Provider (CVE-2020-1948)

    Technology sharing July 2, 2020
  • Linux server quickly checks whether the system is hacked or intruded

    Wuhan Cloud Summit Security Operation and Maintenance Sharing: Linux server quickly checks whether the system is hacked or intruded

    Technology sharing April 4, 2020
  • Firewall software failure, alarm call in Massachusetts, USA was paralyzed

    Massachusetts emergency department officials said on the 19th that the state emergency service telephone "911" was paralyzed on the 18th because the system firewall software blocked people's incoming help calls.

    Industry trends June 20, 2024
  • French government website suffers the worst DDoS attack in history

    A statement issued by the French Prime Minister's Office on Monday confirmed that a series of DDoS attacks that began on Sunday night hit many government departments' websites, and the scale of the attacks was "unprecedented". On Tuesday, the Russian hacker group Anonymous Sudan claimed responsibility for large-scale distributed denial of service (DDoS) attacks on several French government websites. A large number of websites of French government institutions have been affected. "We launched a large-scale cyber attack on the infrastructure of the French Inter Governmental Digital Affairs Bureau (DINUM)," said the anonymous sultan on its official Telegram channel, "The digital endpoint of the French core government has been attacked, with great scope of damage." In addition to DINUM, the "anonymous sultan" confirmed in its post that the attack

    Industry trends March 15, 2024
  • 5 companies were punished by the Beijing Internet Police for failing to perform the obligation of network security protection and having loopholes in the website

    Illegal gambling information appears on the website of a science and technology information service limited liability company in Beijing. The company's official website is a static page, and the involved server is a virtual server. Users do not need any permission to access static files. On November 12, 2023, someone entered the company's server to rewrite the file into gambling website information.

    Industry trends March 5, 2024
  • AI fraud affects many countries: the way is higher than the devil?

    In the face of AI new fraud, in addition to widely informing the public of practical identification skills, in the long run, it is also necessary to take a multi pronged approach of personal prevention, defense technology iteration, compaction of platform responsibilities, and improvement of laws and regulations.
    Generative artificial intelligence (AIGC) continues to be popular, and the legal, security and ethical challenges that follow are also growing.

    Industry trends May 28, 2023
  • Russian government agencies shift from Windows to Linux

    After Microsoft suspended product sales in Russia on March 4, the number of online searches for pirated Microsoft software in the region soared by 250%. So far, the search volume of Excel downloads has increased by 650% in June. At the end of June, Microsoft banned Russian users from downloading Windows 10 and 11 from its official website. Microsoft said last month that it was significantly reducing its business in Russia. According to Bloomberg, the move hit Russia hard because many of its manufacturing and engineering systems depend on foreign software. According to the Moscow Times, a Russian media, Russian government agencies are shifting from Microsoft Windows to Linux. Kommers…

    Industry trends July 4, 2022
  • Legal Network - "White hat" must be used to maintain network security

    Today, network security is increasingly becoming a new battlefield of national interests and competition. However, vulnerabilities have become the biggest threat to network security. Around loopholes, various industries and groups compete for profits. Among them, "white hat" detection of loopholes has formed a special private industry.

    Industry trends May 28, 2018

About us

Wuhan Yunzhiding Information Technology Co., Ltd. is a professional cloud security service provider. The company has a group of professionals with profound knowledge in information security incident handling, hacker attack and defense, hierarchical protection and other fields. It mainly provides small and medium-sized enterprises with security consulting, risk assessment, security operation and maintenance, intrusion protection, attack defense, penetration testing, emergency response, security early warning, security reinforcement, grade protection, security station building, host rental, security training and other services