fail2ban vs. log4shell

As it was raining today, I hacked together „apache-log4shell”, a quick & dirty fail2ban filter that blocks hosts that try to exploit or „test for” CVE-2021-44228, also known as log4shell.

As fail2ban acts on log entries (oh, the irony), this is of course NOT a safeguard against log4shell, but a mere tool to reduce the lognoise.

Testcases, … can be found in my fail2ban GitLab repo.

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[Sonntag, 20211212, 14:00 | permanent link | 0 Kommentar(e)

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„Leyrers Online Pamphlet“ ist die persönliche Website von mir, Martin Leyrer. Die hier veröffentlichten Beiträge spiegeln meine Ideen, Interessen, meinen Humor und fallweise auch mein Leben wider.
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