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BIG-IQ

Kerentanan kritis F5 BIG-IP sekarang ditargetkan dalam serangan yang sedang berlangsung

March 20, 2021 by Winnie the Pooh

Pada hari Kamis, perusahaan keamanan siber NCC Group mengatakan bahwa mereka berhasil mendeteksi eksploitasi liar dari kerentanan kritis yang baru-baru ini ditambal di perangkat jaringan F5 BIG-IP dan BIG-IQ.

Upaya eksploitasi telah dimulai awal minggu ini dan telah meningkat selama 24 jam terakhir, dengan aktivitas pemindaian massal terdeteksi oleh NCC Group dan Bad Packets.

“Mulai minggu ini dan terutama dalam 24 jam terakhir (18 Maret 2021) kami telah mengamati berbagai upaya eksploitasi terhadap infrastruktur honeypot kami,” kata Rich Warren dan Sander Laarhoven dari NCC Group.

Kerentanan keamanan yang coba dieksploitasi oleh penyerang ini adalah eksekusi perintah jarak jauh (RCE) yang tidak diautentikasi yang dilacak sebagai CVE-2021-22986, dan ini memengaruhi sebagian besar versi perangkat lunak F5 BIG-IP dan BIG-IQ.

Beberapa peneliti keamanan telah membagikan kode eksploitasi bukti konsep setelah merekayasa balik patch BIG-IP.

Eksploitasi bug yang berhasil (dengan tingkat keparahan 9.8 / 10) dapat menyebabkan gangguan sistem secara penuh, termasuk perpindahan lateral ke jaringan internal dan intersepsi lalu lintas aplikasi pengontrol.

Sumber: Bleeping Computer

Tagged With: BIG-IP, BIG-IQ, Cybersecurity, F5, Vulnerability

F5 mendesak pelanggan untuk menambal bug RCE pre-auth BIG-IP yang penting

March 12, 2021 by Winnie the Pooh

F5 Networks, penyedia terkemuka perlengkapan jaringan perusahaan, telah mengumumkan empat kerentanan eksekusi kode jarak jauh (RCE) kritis yang memengaruhi sebagian besar versi perangkat lunak BIG-IP dan BIG-IQ.

F5 BIG-IP perangkat lunak dan pelanggan perangkat keras termasuk pemerintah, perusahaan Fortune 500, bank, penyedia layanan internet, dan merek konsumen (termasuk Microsoft, Oracle, dan Facebook), dengan perusahaan mengklaim bahwa “48 dari Fortune 50 mengandalkan F5”.

Empat kerentanan kritis yang tercantum di bawah ini juga mencakup cacat keamanan RCE pre-auth (CVE-2021-22986) yang memungkinkan penyerang jarak jauh yang tidak diautentikasi untuk menjalankan perintah sewenang-wenang pada perangkat BIG-IP yang disusupi:

  • CVE-2021-22986: iControl REST unauthenticated remote command execution (9.8/10)
  • CVE-2021-22987: Appliance Mode TMUI authenticated remote command execution
  • CVE-2021-22991: TMM buffer-overflow (9.0/10)
  • CVE-2021-22992: Advanced WAF/ASM buffer-overflow (9.0/10)

Eksploitasi yang berhasil dari kerentanan BIG-IP RCE yang kritis dapat menyebabkan gangguan sistem penuh, termasuk intersepsi lalu lintas aplikasi pengontrol dan perpindahan lateral ke jaringan internal.

F5 juga menerbitkan peringatan keamanan pada tiga kerentanan RCE lainnya (dua tinggi dan satu medium, dengan peringkat keparahan CVSS antara 6,6 dan 8,8), memungkinkan penyerang jarak jauh yang diautentikasi untuk menjalankan perintah sistem sewenang-wenang.

Tujuh kerentanan diperbaiki dalam versi BIG-IP berikut: 16.0.1.1, 15.1.2.1, 14.1.4, 13.1.3.6, 12.1.5.3, dan 11.6.5.3.

Sumber: Bleeping Computer

Tagged With: BIG-IP, BIG-IQ, Cybersecurity, F5, RCE, Vulnerability

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