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CVE-2021-32634— Deserialization of Untrusted Data in 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 版本中存在安全漏洞，该漏洞源于在已通过鉴权的post请求到 WorkSpaceClientEnqueue.action 时，会导致不安全的反序列化，可能会引起远程代码执行。

CVSS 7.2 · High EPSS 1.28% · P69

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-32634

Vulnerability Information
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Vulnerability Title
Deserialization of Untrusted Data in Emissary
Source: CVE Program / CVE List V5
Vulnerability Description
Emissary is a distributed, peer-to-peer, data-driven workflow framework. Emissary 6.4.0 is vulnerable to Unsafe Deserialization of post-authenticated requests to the [`WorkSpaceClientEnqueue.action`](https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/WorkSpaceClientEnqueueAction.java) REST endpoint. This issue may lead to post-auth Remote Code Execution. This issue has been patched in version 6.5.0. As a workaround, one can 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:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
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 版本中存在安全漏洞，该漏洞源于在已通过鉴权的post请求到 WorkSpaceClientEnqueue.action 时，会导致不安全的反序列化，可能会引起远程代码执行。
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 < 6.5.0 -

II. Public POCs for CVE-2021-32634

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III. Intelligence Information for CVE-2021-32634

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Patches & Fixes for CVE-2021-32634 (1)

Vendor Advisories for CVE-2021-32634 (1)

IV. Related Vulnerabilities

Same product: emissary
Same vendor: NationalSecurityAgency
Same weakness: CWE-502

V. Comments for CVE-2021-32634

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