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You are here: Home / News / Peretas dapat menggunakan koneksi server tidak aman WinZip untuk menjatuhkan malware

Peretas dapat menggunakan koneksi server tidak aman WinZip untuk menjatuhkan malware

December 11, 2020 by Winnie the Pooh

Komunikasi klien-server dalam versi tertentu dari alat kompresi file WinZip tidak aman dan dapat dimodifikasi untuk menyajikan malware atau konten palsu kepada pengguna.

WinZip telah menjadi utilitas lama bagi pengguna Windows dengan kebutuhan pengarsipan file di luar dukungan yang dibangun di dalam sistem operasi.

WinZip saat ini di versi 25 tetapi rilis sebelumnya memeriksa server untuk pembaruan melalui koneksi yang tidak terenkripsi, kelemahan yang dapat dieksploitasi oleh aktor jahat.

Martin Rakhmanov dari Trustwave SpiderLabs menangkap lalu lintas dari versi alat yang rentan untuk menunjukkan komunikasi yang tidak terenkripsi.

Mengingat sifat saluran komunikasi yang tidak aman, Rakhmanov mengatakan bahwa lalu lintas dapat “dirampas, dimanipulasi, atau dibajak” oleh penyerang di jaringan yang sama dengan pengguna WinZip.

Satu risiko yang berasal dari tindakan ini adalah DNS poisoning, yang mengelabui aplikasi agar mengambil pembaruan palsu dari server web jahat.

Pada versi WinZip yang rentan, penyerang juga dapat memperoleh informasi yang berpotensi sensitif seperti nama pengguna dan kode pendaftaran.

Peneliti mengatakan bahwa skenario ini juga disertai dengan risiko mengeksekusi kode arbitrary pada mesin korban karena WinZip menawarkan beberapa API “kuat” ke JavaScript.

Dengan dirilisnya WinZip 25, komunikasi cleartext tidak lagi terjadi. Pengguna disarankan untuk memperbarui ke versi yang terbaru.

Sumber: Bleeping Computer

Tagged With: Cybersecurity, Malware, Security, Vulnerability, WinZip

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