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CVE-2021-32639— Server-Side Request Forgery (SSRF) in emissary:emissary

Quick assessment

Affected
NationalSecurityAgency emissary
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Emissary是一个应用软件。一个基于P2P的数据驱动的工作流引擎，可在异构的可能广泛分布的多层P2P网络计算资源中运行。 Emissary 6.4.0存在安全漏洞，该漏洞源于RegisterPeerAction 端点和 AddChildDirectoryAction 端点容易受到 SSRF 的攻击。

CVSS 7.2 · High EPSS 1.40% · P71

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-32639

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery (SSRF) in emissary:emissary
Source: CVE Program / CVE List V5
Vulnerability Description
Emissary is a P2P-based, data-driven workflow engine. Emissary version 6.4.0 is vulnerable to Server-Side Request Forgery (SSRF). In particular, the `RegisterPeerAction` endpoint and the `AddChildDirectoryAction` endpoint are vulnerable to SSRF. This vulnerability may lead to credential leaks. Emissary version 7.0 contains a patch. As a workaround, disable network access to Emissary from untrusted sources.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Emissary 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Emissary是一个应用软件。一个基于P2P的数据驱动的工作流引擎，可在异构的可能广泛分布的多层P2P网络计算资源中运行。 Emissary 6.4.0存在安全漏洞，该漏洞源于RegisterPeerAction 端点和 AddChildDirectoryAction 端点容易受到 SSRF 的攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NationalSecurityAgency emissary <= 6.4.0 -

II. Public POCs for CVE-2021-32639

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III. Intelligence Information for CVE-2021-32639

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Vendor Advisories for CVE-2021-32639 (1)

Other References for CVE-2021-32639 (2)

IV. Related Vulnerabilities

Same product: emissary
Same vendor: NationalSecurityAgency
Same weakness: CWE-918

V. Comments for CVE-2021-32639

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