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CVE-2021-31819

Quick assessment

Affected
Octopus Deploy Halibut
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.

Halibut是Octopus Deploy个人开发者的一个安全的、基于 RPC 的开源通信框架。 Halibut 存在代码问题漏洞，该漏洞源于在 4.4.7 版本之前的 Halibut 版本中，存在一个反序列化漏洞，该漏洞可能允许在已经基于证书验证相互信任的系统上远程执行代码。

AI Predicted 4.3 Difficulty: Easy EPSS 2.35% · P82

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-31819

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Halibut versions prior to 4.4.7 there is a deserialisation vulnerability that could allow remote code execution on systems that already trust each other based on certificate verification.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Halibut 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Halibut是Octopus Deploy个人开发者的一个安全的、基于 RPC 的开源通信框架。 Halibut 存在代码问题漏洞，该漏洞源于在 4.4.7 版本之前的 Halibut 版本中，存在一个反序列化漏洞，该漏洞可能允许在已经基于证书验证相互信任的系统上远程执行代码。
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
Octopus Deploy Halibut unspecified ~ 4.4.7 -

II. Public POCs for CVE-2021-31819

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-31819

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Other References for CVE-2021-31819 (1)

IV. Related Vulnerabilities

Same vendor: Octopus Deploy

V. Comments for CVE-2021-31819

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