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You are here: Home / News / Microsoft Patch Edisi Selasa, Februari 2023

Microsoft Patch Edisi Selasa, Februari 2023

February 15, 2023 by Flamango

Microsoft merilis tambalan untuk menyumbat lusinan lubang keamanan di sistem operasi Windows dan perangkat lunak lainnya. Patch Hari Valentine khusus tahun ini Selasa mencakup perbaikan untuk tiga kerentanan “nol hari” yang berbeda yang sudah digunakan dalam serangan aktif.

Penasihat keamanan Microsoft jarang memberikan detail tentang bug zero-day. Redmond menandai CVE-2023-23376 sebagai peningkatan penting dari kerentanan hak istimewa di Driver Sistem File Log Umum Windows, yang ada di sistem Windows 10 dan 11, serta banyak versi server Windows.

CVE-2023-21715 zero-day adalah kelemahan di Microsoft Office yang digambarkan Redmond sebagai kerentanan bypass fitur keamanan.

Microsoft mencantumkan ini sebagai eksploitasi aktif, tetapi mereka tidak memberikan info tentang seberapa luas eksploitasi ini.

Cacat zero-day ketiga yang sudah terlihat dieksploitasi adalah CVE-2023-21823, merupakan peningkatan lain dari kelemahan hak istimewa. Para peneliti di firma forensik keamanan siber Mandiant dikreditkan dengan melaporkan bug tersebut.

Microsoft memperbaiki kerentanan Office lainnya di CVE-2023-21716, merupakan bug Microsoft Word yang dapat menyebabkan eksekusi kode jarak jauh. Lubang keamanan ini memiliki skor keparahan (CVSS) 9,8 dari kemungkinan 10.

Redmond menambal tiga kelemahan Exchange Server (CVE-2023-21706, CVE-2023-21707, dan CVE-2023-21529), menurut Microsoft adalah kelemahan eksekusi kode jarak jauh yang kemungkinan besar akan dieksploitasi.

Microsoft mengatakan otentikasi diperlukan untuk mengeksploitasi bug ini, tetapi sekali lagi kelompok ancaman yang menyerang kerentanan Exchange juga cenderung melakukan phishing target untuk kredensial Exchange mereka.

Semua perangkat konsumen dan komersial yang tersisa yang belum dialihkan dari IE11 ke Microsoft Edge dialihkan dengan pembaruan Microsoft Edge. Pengguna tidak akan dapat membatalkan perubahan tersebut.

Harap pertimbangkan untuk mencadangkan data dan/atau mencitrakan sistem sebelum menerapkan pembaruan apa pun.

Selengkapnya: KrebsonSecurity

Tagged With: Bug zero-day, Microsoft, Patch Tuesday

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