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CVE-2025-61779— Trustee's attestation-policy endpoint is not protected by admin autentication

Quick assessment

Affected
confidential-containers trustee
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.

trustee是Confidential Containers开源的一个组件。 trustee 0.15.0之前版本存在安全漏洞，该漏洞源于attestation-policy端点未验证kbs-client身份，可能导致任意kbs-client修改认证策略。

AI Predicted 7.5 Difficulty: Easy EPSS 0.33% · P25

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-61779

Vulnerability Information
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Vulnerability Title
Trustee's attestation-policy endpoint is not protected by admin autentication
Source: CVE Program / CVE List V5
Vulnerability Description
Confidential Containers's Trustee project contains tools and components for attesting confidential guests and providing secrets to them. In versions prior to 0.15.0, the attestation-policy endpoint didn't check if the kbs-client submitting the request was actually authenticated (had the right key). This allowed any kbs-client to actually change the attestation policy. Version 0.15.0 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
trustee 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
trustee是Confidential Containers开源的一个组件。 trustee 0.15.0之前版本存在安全漏洞，该漏洞源于attestation-policy端点未验证kbs-client身份，可能导致任意kbs-client修改认证策略。
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
confidential-containers trustee < 0.15.0 -

II. Public POCs for CVE-2025-61779

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III. Intelligence Information for CVE-2025-61779

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IV. Related Vulnerabilities

Same product: trustee
Same vendor: confidential-containers
Same weakness: CWE-639

V. Comments for CVE-2025-61779

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