How do hackers attack cameras?
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With the further popularization of network video surveillance cameras, especially in the current trend of the Internet of Things era, monitoring solutions are connected with more and more devices, which brings great convenience and many new problems, such as Network security is one of the main problems. In the past few years, there has been a lot of news about cameras being attacked by cyber attacks. Video surveillance is as fragile as other devices in the face of cyber security challenges. How to strengthen network security needs to be said from the way it is commonly attacked:
1. In many cases, an attacker usually scans the camera's protocol and port, then browses and accesses the device management page. If it fails, it selects a more complicated way to scan, finds the camera, and mimics the authorized user. . It is worth noting that attackers do not need to exploit software vulnerabilities to implement attack cameras. Many camera design flaws, or other connected devices, can be a hacker attack if they have security holes. From this point, it can be seen that if the camera product is constructed with a certain security protection mechanism at the beginning of design, even if the camera is found to have a vulnerability later, it is not an easy task for the attack to exploit these vulnerabilities. It will also push the information in time, similar to other network devices, and upgrade to improve the security level;
Second, another common method is that an attacker exploits a video vulnerability known to the camera in open source or third-party libraries. For example, a web server is a relatively vulnerable component, and it is generally possible to see that a hacker utilizes a third-party web server. Vulnerabilities to access the news of the camera;
Third, the attacker uses the command injection method (Command Injection), which means that because the web application does not strictly filter the data submitted by the user, the hacker can submit the data to the web application by constructing a special command string. In this way, use this method to execute an external program or system command to carry out an attack, illegally acquire data or network resources, and the like. In other words, as long as the developer is good at filtering data, using a good whitelist can circumvent this attack.
Summarize the above attack methods, for the user should:
First, the initial password is modified. At the same time, it is worth noting that in addition to the initial password problem, the manufacturer may also have a "hidden" username and password. The original meaning is mainly used for product testing, but once it is discovered by a hacker. And the use will also have a great impact; the second is to pay attention to the manufacturer's push information in a timely manner, and do a good job in equipment safety upgrade.
Of course, this is only the basic work in the face of unknown network challenges. Attackers can achieve bypass attacks, that is, accessing the camera through weak security authentication. In more complicated situations, malware can also be used to use code loops in the camera. Load other virus files, attack other targets, and more.