Proof-of-concept exploit code has been publicly released for vulnerabilities in Juniper SRX firewalls that, when chained, can allow unauthenticated attackers to gain remote code execution in Juniper’s JunOS on unpatched devices.
Juniper disclosed four medium-severity bugs in its EX switches and SRX firewalls and released security patches two weeks ago.
The security flaws were found in the PHP-based J-Web interface that admins can use to manage and configure Juniper devices on their networks.
WatchTowr Labs security researchers have since developed and released a proof-of-concept exploit that chains the SRX firewall flaws, a missing authentication for critical function vulnerability and a PHP external variable modification bug.
While Juniper has not provided any info on active exploitation of the security flaws in the wild, watchTowr Labs expects attackers to soon start targeting Juniper devices left unpatched in widescale attacks.
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