CVE-2021-29485

Katalog CVE

CVSS 8.8 · High EPSS 2,0%

Kerentanan Deserialization of Untrusted Data pada ratpack project ratpack. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, a malicious attacker can achieve Remote Code Execution (RCE) via a maliciously crafted Java deserialization gadget chain leveraged against the Ratpack session store. If one's application does not use Ratpack's session mechanism, it is not vulnerable. Ratpack 1.9.0 introduces a strict allow-list mechanism that mitigates this vulnerability when used. Two possible workarounds exist. The simplest mitigation for users of earlier versions is to reduce the likelihood of attackers being able to write to the session data store. Alternatively or additionally, the allow-list mechanism could be manually back ported by providing an alternative implementation of `SessionSerializer` that uses an allow-list.

Rincian

Terbit di NVD

29 Juni 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

2,0% peluang dieksploitasi; lebih tinggi dari 80,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/ratpack/ratpack/security/advisories/GHSA-hc33-32vw-rpp9 advisory pihak ketiga
• https://mvnrepository.com/artifact/io.ratpack/ratpack-core release notes · advisory pihak ketiga