{"id":2797,"date":"2021-05-21T22:01:51","date_gmt":"2021-05-22T03:01:51","guid":{"rendered":"https:\/\/truxgoservers.com\/blog\/?p=2797"},"modified":"2021-05-21T22:01:52","modified_gmt":"2021-05-22T03:01:52","slug":"blind-sql-injection-a-variant-of-sql-injection","status":"publish","type":"post","link":"https:\/\/truxgoservers.com\/blog\/blind-sql-injection-a-variant-of-sql-injection\/","title":{"rendered":"Blind SQL Injection &#8211; A variant of SQL injection"},"content":{"rendered":"\n<p>SQL, which have been around for a long time. Today, they continue to be widely used by cybercriminals. The purpose of these attacks is to compromise the servers targeted by cybercriminals and dispose of them for other purposes. And it is that there are a great variety of attacks and new ones appear regularly and the protagonism of today is taken by Blind SQL Injection which we will talk about.<\/p>\n\n\n\n<p>Blind SQL Injection is used when there are no error messages before a possible injection or they have been altered by the developer. In addition, it is not possible to view the data of the inquiries on the website. In this way, the attacker tries to inject queries that return a true value and thus be able to infer what type of information the query returns. Therefore, when the query is correct, it will display the same content and not the custom error message.<\/p>\n\n\n\n<p>SQL Blind injection is an SQL injection attack technique that relies on the web page&#8217;s error responses to certain inputs. In general, code injection attacks on a website are based on the lack of checking of the input parameters. An input parameter is any value sent from the client to the web server. The usual input parameters to the web server are:<\/p>\n\n\n\n<p><strong><em>\u25b8GET call fields passed by URL<\/em><\/strong><\/p>\n\n\n\n<p><strong><em>\u25b8Form fields submitted by POST method<\/em><\/strong><\/p>\n\n\n\n<p><strong><em>\u25b8Variables stored in cookies<\/em><\/strong><\/p>\n\n\n\n<p><strong><em>\u25b8Http header values <\/em><\/strong><\/p>\n\n\n\n<p><strong><em>\u25b8Javascripts function call parameters<\/em><\/strong><\/p>\n\n\n\n<p>It is important to clarify that there are various techniques to protect against this type of injection. Some of them are more complex than others. However, in the first instance, it is important to carry out the necessary controls on the parameters that are taken as input data. You always have to think about what the access points can be for an attacker and thus be able to anticipate possible injections.<\/p>\n\n\n\n<p>Related reads:<br><a href=\"https:\/\/truxgoservers.com\/blog\/sql-injection-how-these-attacks-can-affect-us\/\">SQL Injection \u2013 How these attacks can affect us<\/a><br><a href=\"https:\/\/truxgoservers.com\/blog\/crlf-injection-a-vulnerability-that-attacks-servers\/\">CRLF Injection \u2013 A Vulnerability that attacks servers<\/a><br><a href=\"https:\/\/truxgoservers.com\/blog\/php-vulnerabilities-and-risks\/\">PHP Vulnerabilities and risks<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SQL, which have been around for a long time. Today, they continue to be widely used by cybercriminals. The purpose of these attacks is to compromise the servers targeted by cybercriminals and dispose of them for other purposes. And it is that there are a great variety of attacks and new ones appear regularly and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2798,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[36],"class_list":["post-2797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-cybersecurity"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Blind SQL Injection - A variant of SQL injection - Truxgo Server Blog<\/title>\n<meta name=\"description\" content=\"One of the most common vulnerabilities is SQL injections, these have many variants and today we will see the one called Blind SQL Injection..\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/truxgoservers.com\/blog\/blind-sql-injection-a-variant-of-sql-injection\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Blind SQL Injection - A variant of SQL injection - Truxgo Server Blog\" \/>\n<meta property=\"og:description\" content=\"One of the most common vulnerabilities is SQL injections, these have many variants and today we will see the one called Blind SQL Injection..\" \/>\n<meta property=\"og:url\" content=\"https:\/\/truxgoservers.com\/blog\/blind-sql-injection-a-variant-of-sql-injection\/\" \/>\n<meta property=\"og:site_name\" content=\"Truxgo Server Blog\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-22T03:01:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-05-22T03:01:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/truxgoservers.com\/blog\/wp-content\/uploads\/2021\/05\/Injection.png\" \/>\n\t<meta property=\"og:image:width\" content=\"768\" \/>\n\t<meta property=\"og:image:height\" content=\"432\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Truxgo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Truxgo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/truxgoservers.com\\\/blog\\\/blind-sql-injection-a-variant-of-sql-injection\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/truxgoservers.com\\\/blog\\\/blind-sql-injection-a-variant-of-sql-injection\\\/\"},\"author\":{\"name\":\"Truxgo\",\"@id\":\"https:\\\/\\\/truxgoservers.com\\\/blog\\\/#\\\/schema\\\/person\\\/8b409c26449db6aa09724b45331e333e\"},\"headline\":\"Blind SQL Injection &#8211; 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