CVE-2023-38831

Katalog CVE

CVSS 7.8 · High KEV · sudah dieksploitasi Dipakai ransomware EPSS 99,8%

Kerentanan Insufficient Verification of Data Authenticity pada rarlab winrar. Skor CVSS 3.1 7.8 (High) menurut NVD. Masuk katalog KEV CISA pada 24 Agustus 2023, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023.

Rincian

Terbit di NVD

23 Agustus 2023

Terakhir diubah

5 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-345: Insufficient Verification of Data Authenticity
CWE-351: Insufficient Type Distinction

EPSS (30 hari)

99,8% peluang dieksploitasi; lebih tinggi dari 99,9% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

RARLAB WinRAR Code Execution Vulnerability

Masuk KEV

24 Agustus 2023

Tenggat CISA

14 September 2023 (untuk instansi federal AS)

Ransomware

Tercatat dipakai dalam kampanye ransomware

Tindakan wajib

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38831 pemerintah AS
• http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html exploit · advisory pihak ketiga · vdb entry
• https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/ exploit · advisory pihak ketiga
• https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/ exploit · press/media coverage · advisory pihak ketiga
• https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/ exploit · press/media coverage · advisory pihak ketiga
• https://news.ycombinator.com/item?id=37236100 issue tracking