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You are here: Home / News / Peretas yang Disponsori Negara Kemungkinan Mengeksploitasi MS Exchange 0-Day Melawan ~10 Organisasi

Peretas yang Disponsori Negara Kemungkinan Mengeksploitasi MS Exchange 0-Day Melawan ~10 Organisasi

October 2, 2022 by Søren

Microsoft pada hari Jumat mengungkapkan bahwa satu grup aktivitas pada Agustus 2022 mencapai akses awal dan melanggar server Exchange dengan merantai dua kelemahan zero-day yang baru diungkapkan dalam serangkaian serangan terbatas yang ditujukan pada kurang dari 10 organisasi secara global.

“Serangan ini menginstal web shell Chopper untuk memfasilitasi akses hands-on-keyboard, yang digunakan penyerang untuk melakukan pengintaian Active Directory dan eksfiltrasi data,” kata Microsoft Threat Intelligence Center (MSTIC) dalam analisis baru.

Persenjataan kerentanan diperkirakan akan meningkat dalam beberapa hari mendatang, Microsoft lebih lanjut memperingatkan, karena aktor jahat mengkooptasi eksploitasi ke dalam toolkit mereka, termasuk menyebarkan ransomware, karena “akses yang sangat istimewa yang diberikan sistem Exchange kepada penyerang.”

Raksasa teknologi itu mengaitkan serangan yang sedang berlangsung dengan tingkat kepercayaan menengah ke organisasi yang disponsori negara, menambahkan bahwa mereka sudah menyelidiki serangan ini ketika Zero Day Initiative mengungkapkan kelemahannya ke Microsoft Security Response Center (MSRC) awal bulan lalu pada 8-9 September 2022.

Kedua kerentanan telah secara kolektif dijuluki ProxyNotShell, karena fakta bahwa “itu adalah jalur yang sama dan pasangan SSRF/RCE” sebagai ProxyShell tetapi dengan otentikasi, menunjukkan tambalan yang tidak lengkap.

Masalah, yang dirangkai untuk mencapai eksekusi kode jarak jauh, tercantum di bawah ini:

  • CVE-2022-41040 (skor CVSS: 8,8) – Peningkatan Kerentanan Privilege Server Microsoft Exchange
  • CVE-2022-41082 (skor CVSS: 8,8) – Kerentanan Eksekusi Kode Jarak Jauh Microsoft Exchange Server

Selengkapnya: The Hacker News

Tagged With: Exploit, Vulnerability

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