Roger Grimes: Vulnerabilities include backdoors, hard-coded credentials, undocumented protocols, and weak encryption algorithms. Most of the devices appeared to use little or no security or security by obscurity, he says. Most likely have huge design flaws that will not be easy to fix, and that’s if you can convince the vendors it needs to be fixed. Many (if not most) satellite devices lack auto-updating mechanisms and are likely to remain vulnerable in perpetuity. Attackers love those sorts of scenarios.”]
Source: https://www.csoonline.com/article/2607786/the-sky-is-falling–hackers-target-satellites.html