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CVE-2020-4062— Improper Access Control in Conjur OSS Helm Chart

Quick assessment

Affected
CyberArk Conjur OSS Helm Chart
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Conjur OSS Helm Chart是用于把Conjur OSS部署到Kubernetes的工具。 Conjur OSS Helm Chart 2.0.0之前版本中存在安全漏洞。攻击者可利用该漏洞获取Conjur Postgres数据库全部的读写权限，进而获取全部的访问权限，检索任意敏感信息。

CVSS 8.7 · High EPSS 1.41% · P71

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2020-4062

Vulnerability Information
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Vulnerability Title
Improper Access Control in Conjur OSS Helm Chart
Source: CVE Program / CVE List V5
Vulnerability Description
In Conjur OSS Helm Chart before 2.0.0, a recently identified critical vulnerability resulted in the installation of the Conjur Postgres database with an open port. This allows an attacker to gain full read & write access to the Conjur Postgres database, including escalating the attacker's privileges to assume full control. A malicious actor who knows the IP address and port number of the Postgres database and has access into the Kubernetes cluster where Conjur runs can gain full read & write access to the Postgres database. This enables the attacker to write a policy that allows full access to retrieve any secret. This Helm chart is a method to install Conjur OSS into a Kubernetes environment. Hence, the systems impacted are only Conjur OSS systems that were deployed using this chart. Other deployments including Docker and the CyberArk Dynamic Access Provider (DAP) are not affected. To remediate this vulnerability, clone the latest Helm Chart and follow the upgrade instructions. If you are not able to fully remediate this vulnerability immediately, you can mitigate some of the risk by making sure Conjur OSS is deployed on an isolated Kubernetes cluster or namespace. The term "isolated" refers to: - No other workloads besides Conjur OSS and its backend database are running in that Kubernetes cluster/namespace. - Kubernetes and helm access to the cluster/namespace is limited to security administrators via Role-Based Access Control (RBAC).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Conjur OSS Helm Chart 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Conjur OSS Helm Chart是用于把Conjur OSS部署到Kubernetes的工具。 Conjur OSS Helm Chart 2.0.0之前版本中存在安全漏洞。攻击者可利用该漏洞获取Conjur Postgres数据库全部的读写权限，进而获取全部的访问权限，检索任意敏感信息。
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
CyberArk Conjur OSS Helm Chart < 2.0.0 -

II. Public POCs for CVE-2020-4062

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8519 chars
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III. Intelligence Information for CVE-2020-4062

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Patches & Fixes for CVE-2020-4062 (1)

Vendor Advisories for CVE-2020-4062 (1)

IV. Related Vulnerabilities

Same vendor: CyberArk
Same weakness: CWE-284

V. Comments for CVE-2020-4062

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