published September 11, 2020
⚠️ An XML configuration file is your attacker’s ticket to the files they want! This XXE vulnerability in Hyland OnBase could let sneaky intruders read and write to arbitrary files — and it affects multiple versions. 🕵️♂️ Think of it as a postal worker who delivers letters but also has access to all the private files in the office — if they’re given a cleverly crafted envelope, they can snoop around and do much more than just deliver mail. If exploited, an attacker could access sensitive information or even modify critical files, which could lead to data corruption or loss. In the worst-case scenario, this could impact your entire system's integrity, allowing unauthorized access to sensitive data.
Think of it as a postal worker who delivers letters but also has access to all the private files in the office — if they’re given a cleverly crafted envelope, they can snoop around and do much more than just deliver mail. The XXE vulnerability allows malicious XML data to be processed by the server, enabling an attacker to read or write files beyond the intended scope. This issue affects Hyland OnBase versions 16.0.2.83 and below, 17.0.2.109 and below, 18.0.0.37 and below, 19.8.16.1000 and below, and 20.3.10.1000 and below.
If exploited, an attacker could access sensitive information or even modify critical files, which could lead to data corruption or loss. In the worst-case scenario, this could impact your entire system's integrity, allowing unauthorized access to sensitive data. To protect against this vulnerability, upgrade to the latest patched version of Hyland OnBase that addresses this issue. Additionally, review your XML parsing configurations to ensure that external entity processing is disabled. Regularly audit your systems for potential security risks as well. You've got this! By taking these steps, you're one step closer to securing your system! 🛡️