CVE-2021-29480

Katalog CVE

CVSS 3.1 · Low EPSS 0,26%

Kerentanan Generation of Predictable Numbers or Identifiers pada ratpack project ratpack. Skor CVSS 3.1 3.1 (Low) menurut NVD.

Deskripsi (NVD)

Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, the client side session module uses the application startup time as the signing key by default. This means that if an attacker can determine this time, and if encryption is not also used (which is recommended, but is not on by default), the session data could be tampered with by someone with the ability to write cookies. The default configuration is unsuitable for production use as an application restart renders all sessions invalid and is not multi-host compatible, but its use is not actively prevented. As of Ratpack 1.9.0, the default value is a securely randomly generated value, generated at application startup time. As a workaround, supply an alternative signing key, as per the documentation's recommendation.

Rincian

Terbit di NVD

29 Juni 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-340: Generation of Predictable Numbers or Identifiers
CWE-330: Use of Insufficiently Random Values

EPSS (30 hari)

0,26% peluang dieksploitasi; lebih tinggi dari 16,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/ratpack/ratpack/blob/29434f7ac6fd4b36a4495429b70f4c8163100332/ratpack-session/src/main/java... advisory pihak ketiga
• https://github.com/ratpack/ratpack/security/advisories/GHSA-2cc5-23r7-vc4v advisory pihak ketiga