CVE-2020-8445

Katalog CVE

CVSS 9.8 · Critical EPSS 2,3%

Kerentanan Improper Input Validation pada ossec. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

In OSSEC-HIDS 2.7 through 3.5.0, the OS_CleanMSG function in ossec-analysisd doesn't remove or encode terminal control characters or newlines from processed log messages. In many cases, those characters are later logged. Because newlines (\n) are permitted in messages processed by ossec-analysisd, it may be possible to inject nested events into the ossec log. Use of terminal control characters may allow obfuscating events or executing commands when viewed through vulnerable terminal emulators. This may be an unauthenticated remote attack for certain types and origins of logged data.

Rincian

Terbit di NVD

30 Januari 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation

EPSS (30 hari)

2,3% peluang dieksploitasi; lebih tinggi dari 82,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.ossec.net/ advisory vendor
• https://github.com/ossec/ossec-hids/issues/1814 advisory pihak ketiga
• https://github.com/ossec/ossec-hids/issues/1821 advisory pihak ketiga
• https://security.gentoo.org/glsa/202007-33 advisory pihak ketiga