csirt@kutim:~/threat-intel/cve/CVE-2021-32647

Katalog CVE

CVSS 9.1 · Critical EPSS 2,9%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada nsa emissary. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

Emissary is a P2P based data-driven workflow engine. Affected versions of Emissary are vulnerable to post-authentication Remote Code Execution (RCE). The [`CreatePlace`](https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/CreatePlaceAction.java#L36) REST endpoint accepts an `sppClassName` parameter which is used to load an arbitrary class. This class is later instantiated using a constructor with the following signature: `<constructor>(String, String, String)`. An attacker may find a gadget (class) in the application classpath that could be used to achieve Remote Code Execution (RCE) or disrupt the application. Even though the chances to find a gadget (class) that allow arbitrary code execution are low, an attacker can still find gadgets that could potentially crash the application or leak sensitive data. As a work around disable network access to Emissary from untrusted sources.

Rincian

Terbit di NVD
1 Juni 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
9.1 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
EPSS (30 hari)
2,9% peluang dieksploitasi; lebih tinggi dari 86,3% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
nsa emissary Versi 6.4.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.