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CVE-2022-31036— Symlink following allows leaking out-of-bounds YAML files from Argo CD repo-server

Quick assessment

Affected
argoproj argo-cd
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.

Red Hat OpenShift是美国红帽（Red Hat）公司的一款平台即服务（PaaS）云计算平台，它支持构建、测试、部署和运行应用程序。 Red Hat OpenShift GitOps 1.5 存在安全漏洞，该漏洞源于易受符号链接的影响，攻击者利用该漏洞可以具有存储库写入权限。

CVSS 4.3 · Medium EPSS 0.84% · P55

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2022-31036

Vulnerability Information
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Vulnerability Title
Symlink following allows leaking out-of-bounds YAML files from Argo CD repo-server
Source: CVE Program / CVE List V5
Vulnerability Description
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All versions of Argo CD starting with v1.3.0 are vulnerable to a symlink following bug allowing a malicious user with repository write access to leak sensitive YAML files from Argo CD's repo-server. A malicious Argo CD user with write access for a repository which is (or may be) used in a Helm-type Application may commit a symlink which points to an out-of-bounds file. If the target file is a valid YAML file, the attacker can read the contents of that file. Sensitive files which could be leaked include manifest files from other Applications' source repositories (potentially decrypted files, if you are using a decryption plugin) or any YAML-formatted secrets which have been mounted as files on the repo-server. Patches for this vulnerability has been released in the following Argo CD versions: v2.4.1, v2.3.5, v2.2.10 and v2.1.16. If you are using a version >=v2.3.0 and do not have any Helm-type Applications you may disable the Helm config management tool as a workaround.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat OpenShift 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat OpenShift是美国红帽（Red Hat）公司的一款平台即服务（PaaS）云计算平台，它支持构建、测试、部署和运行应用程序。 Red Hat OpenShift GitOps 1.5 存在安全漏洞，该漏洞源于易受符号链接的影响，攻击者利用该漏洞可以具有存储库写入权限。
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
argoproj argo-cd >= 1.3.0, < 2.1.16 -

II. Public POCs for CVE-2022-31036

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III. Intelligence Information for CVE-2022-31036

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Patches & Fixes for CVE-2022-31036 (1)

Vendor Advisories for CVE-2022-31036 (1)

Same Patch Batch · argoproj · 2022-06-27 · 3 CVEs total

CVE-2022-31035 9.0 CRITICAL External URLs for Deployments can include javascript in argo-cd
CVE-2022-31034 8.3 HIGH Insecure entropy in argo-cd

IV. Related Vulnerabilities

Same product: argo-cd
Same vendor: argoproj
Same weakness: CWE-20

V. Comments for CVE-2022-31036

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