CVE-2020-28042

Katalog CVE

CVSS 5.3 · Medium EPSS 2,3%

Kerentanan Improper Verification of Cryptographic Signature pada servicestack. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

ServiceStack before 5.9.2 mishandles JWT signature verification unless an application has a custom ValidateToken function that establishes a valid minimum length for a signature.

Rincian

Terbit di NVD

2 November 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

2,3% peluang dieksploitasi; lebih tinggi dari 83,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850 release notes · advisory vendor
• https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee patch · advisory pihak ketiga
• https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass/ exploit · advisory pihak ketiga
• https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack/ exploit · advisory pihak ketiga