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You are here: Home / News / Microsoft memperbaiki zero-day di Defender nya pada Januari 2021 Patch Tuesday

Microsoft memperbaiki zero-day di Defender nya pada Januari 2021 Patch Tuesday

January 13, 2021 by Winnie the Pooh

Microsoft telah mulai meluncurkan set patch keamanan bulanan yang dikenal di industri sebagai Patch Tuesday.

Dalam pembaruan bulan ini, perusahaan yang berbasis di Redmond tersebut telah menambal total 83 kerentanan di berbagai produk, termasuk sistem operasi Windows, produk berbasis cloud, alat pengembang, dan enterprise servers.

Tetapi dari semua bug yang ditambal, yang paling penting adalah kerentanan zero-day di antivirus Microsoft Defender, yang menurut Microsoft telah dieksploitasi sebelum patch ini dirilis.

Dilacak sebagai CVE-2021-1647, kerentanan ini dideskripsikan sebagai bug eksekusi kode jarak jauh (RCE) yang memungkinkan pelaku ancaman untuk mengeksekusi kode pada perangkat yang rentan dengan menipu pengguna agar membuka dokumen berbahaya pada sistem tempat Defender diinstal.

Microsoft mengatakan bahwa meskipun eksploitasi terdeteksi di alam liar, teknik ini tidak berfungsi di semua situasi, dan masih dianggap berada pada tingkat proof-of-concept.

Selain zero-day Defender, Microsoft juga telah memperbaiki cacat keamanan di layanan splwow64 Windows yang dapat disalahgunakan untuk meningkatkan hak istimewa kode penyerang.

Detail tentang bug ini, dilacak sebagai CVE-2021-1648, dipublikasikan bulan lalu, pada 15 Desember, oleh proyek Zero-Day Initiative dari Trend Micro.

Administrator sistem disarankan untuk meninjau kembali dan menerapkan tambalan hari ini sesegera mungkin.

Sumber: ZDNet

Tagged With: Microsoft, Microsoft Defender, Patch Tuesday, RCE, Security

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