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You are here: Home / News / Cara menguji apakah server Linux Anda rentan terhadap Log4j

Cara menguji apakah server Linux Anda rentan terhadap Log4j

December 16, 2021 by Winnie the Pooh

Kerentanan Log4j adalah masalah yang serius. Cacat zero-day ini memengaruhi library Log4j dan dapat memungkinkan penyerang mengeksekusi kode berbahaya pada sistem yang bergantung pada Log4j untuk menulis pesan log.

Salah satu masalah besar adalah mengetahui apakah Anda rentan. Ini diperumit dengan banyaknya cara Log4j dapat digunakan.

Untungnya, untuk server Linux, pengguna GitHub, Rubo77 membuat skrip yang akan memeriksa paket yang menyertakan instance Log4j yang rentan.

Ini masih dalam versi beta, dan ini bukan 100%, tetapi ini adalah awal yang bagus. Pahami, skrip ini tidak menguji file jar yang dikemas dengan aplikasi, jadi jangan menganggapnya lebih dari titik peluncuran untuk memulai forensik Anda.

Inilah cara Anda dapat menjalankan skrip yang sama di server Linux Anda untuk mengetahui apakah Anda mungkin rentan. Masuk ke server Anda dan jalankan perintah:

wget https://raw.githubusercontent.com/rubo77/log4j_checker_beta/main/log4j_checker_beta.sh -q -O – | bash

Output dari perintah akan memberi Anda beberapa indikasi jika server Anda rentan. Seperti yang Anda lihat pada gambar di bawah ini.

Created with GIMP

Ingat, skrip ini bukan jaminan, tetapi tempat yang baik untuk memulai. Meskipun output yang dihasilkan mengatakan server Anda tidak rentan, terus gali untuk memastikan Anda telah memperbarui setiap paket yang diperlukan untuk menghindari terkena kerentanan ini.

Sumber: Tech Republic

Tagged With: Cybersecurity, Keamanan Siber, Kerentanan Keamanan, Log4j, Log4Shell, Vulnerability, Zero Day

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