High-Severity Flaws in Juniper Junos OS Affect Enterprise Networking Devices

Multiple high-severity security flaws have been disclosed as affecting Juniper Networks devices, some of which could be exploited to achieve code execution.

Chief among them is a remote pre-authenticated PHP archive file deserialization vulnerability in the J-Web component of Junos OS, according to Octagon Networks researcher Paulos Yibelo.

“This vulnerability can be exploited by an unauthenticated remote attacker to get remote phar files deserialized, leading to arbitrary file write, which leads to a remote code execution,” Yibelo said in a report shared with The Hacker News.

“If this vulnerability is exploited alongside the file upload vulnerability, it can lead to remote code execution.”

Users of Juniper Networks firewalls, routers, and switches are recommended to apply the latest software patch available for Junos OS to mitigate aforementioned threats.

“One or more of these issues could lead to unauthorized local file access, cross-site scripting attacks, path injection and traversal, or local file inclusion,” Juniper Networks disclosed in an advisory released on October 12, 2022.

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