15 Mar 2024
Biztonsági szemle
5Ghoul Revisited: Three Months Later, (Fri, Mar 15th)
About three months ago, I wrote about the implications and impacts of 5Ghoul in a previous diary [1]. The 5Ghoul family of vulnerabilities could cause User Equipment (UEs) to be continuously exploited (e.g. dropping/freezing connections, which would require manual rebooting or downgrading a 5G connection to 4G) once they are connected to the malicious 5Ghoul gNodeB (gNB, or known as the base station in traditional cellular networks). Given the potential complexities in the realm of 5G mobile network modems used in a multitude of devices (such as mobile devices and 5G-enabled environments such as Industrial Internet-of-Things and IP cameras), I chose to give the situation a bit more time before revisiting the 5Ghoul vulnerability.
Patch updates have been made concerning the various products listed in Table 1 [1]. However, older models tend not to receive security updates due to the end of security patch support. Additionally, some vendors do not publicly make their firmware patch information available, which poses a challenge when ascertaining if affected products were patched. The updated Table 1 below shows the current patch status as of the publication of this diary entry:
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