CVE-2021-42073

Katalog CVE

CVSS 8.2 · High EPSS 1,5%

Kerentanan Session Fixation pada barrier project barrier. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is "Unnamed" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.

Rincian

Terbit di NVD

8 November 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-384: Session Fixation

EPSS (30 hari)

1,5% peluang dieksploitasi; lebih tinggi dari 72,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://www.openwall.com/lists/oss-security/2021/11/02/4 exploit · mailing list · advisory pihak ketiga
• https://github.com/debauchee/barrier/releases/tag/v2.4.0 release notes · advisory pihak ketiga
• https://github.com/debauchee/barrier/commit/229abab99f39f11624e5651f819e7f1f8eddedcc
• https://github.com/debauchee/barrier/commit/b5adc93e2bd74cb094f91ff595c07f321a489f3e