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Kerentanan Oracle yang menjalankan kode berbahaya sedang aktif dieksploitasi

December 2, 2020 by Winnie the Pooh

Penyerang menargetkan kerentanan Oracle WebLogic yang baru-baru ini ditambal. Kerentanan ini memungkinkan mereka mengeksekusi kode yang mereka inginkan, termasuk malware yang menjadikan server bagian dari botnet yang mencuri kata sandi dan informasi sensitif lainnya.

WebLogic adalah aplikasi enterprise Java yang mendukung berbagai database. Server WebLogic adalah hadiah yang didambakan oleh para peretas, yang sering menggunakannya untuk menambang cryptocurrency, memasang ransomware, atau sebagai jalan masuk untuk mengakses bagian lain dari jaringan perusahaan.

Dilacak sebagai CVE-2020-14882, ini adalah kerentanan kritis yang ditambal Oracle pada bulan Oktober tahun ini. Ini memungkinkan penyerang untuk mengeksekusi kode berbahaya melalui Internet dengan sedikit usaha atau keterampilan dan tanpa otentikasi. Kode eksploitasi tersedia untuk umum delapan hari setelah Oracle mengeluarkan tambalan.

Menurut Paul Kimayong, seorang peneliti di Juniper Networks, peretas secara aktif menggunakan lima variasi serangan berbeda untuk mengeksploitasi server yang masih rentan terhadap CVE-2020-14882.

Di antara variasinya adalah salah satu yang menginstal bot DarkIRC. Setelah terinfeksi, server menjadi bagian dari botnet yang dapat menginstal malware pilihannya, menambang cryptocurrency, mencuri kata sandi, dan melakukan serangan denial-of-service.

Varian exploit lainnya memasang payload lain seperti, Serangan Cobalt, Perlbot, Penafsir meteran, Mirai.

CVE-2020-14882 memengaruhi versi WebLogic 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, dan 14.1.1.0.0. Siapa pun yang menggunakan salah satu versi ini harus segera menginstal patch yang dikeluarkan Oracle pada bulan Oktober. Orang-orang juga harus menambal CVE-2020-14750, kerentanan terpisah namun terkait yang diperbaiki Oracle dalam pembaruan darurat dua minggu setelah menerbitkan tambalan untuk CVE-2020-14882.

Sumber: Ars Technica

Tagged With: Botnet, CVE-2020-14882, Cybersecurity, DarkIRC, Malware, Oracle, Security, Vulnerability, WebLogic

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