Cybersecurity Agencies Warn Against IDOR Bugs Exploited for Data Breaches
Jul 28, 2023
Software Security / Data Safety
Cybersecurity agencies in Australia and the U.S. have published a joint cybersecurity advisory warning against security flaws in web applications that could be exploited by malicious actors to orchestrate data breach incidents and steal confidential data. This includes a specific class of bugs called Insecure Direct Object Reference ( IDOR ), a type of access control flaw that occurs when an application utilizes user-supplied input or an identifier for direct access to an internal resource, such as a database record, without any additional validations. A typical example of an IDOR flaw is the ability of a user to trivially change the URL (e.g., https://example[.]site/details.php?id= 12345 ) to obtain unauthorized data of another transaction (i.e., https://example[.]site/details.php?id= 67890 ). "IDOR vulnerabilities are access control vulnerabilities enabling malicious actors to modify or delete data or access sensitive data by issuing requests to a website ...
