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CVE-2018-11083— Bosh accepts refresh tokens in place of an access token

Quick assessment

Affected
Cloud Foundry BOSH
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.

Cloud Foundry BOSH中存在安全漏洞，该漏洞源于在使用UAA进行身份验证时程序允许将refresh令牌当作access令牌使用。远程攻击者可借助admin refresh令牌利用该漏洞访问BOSH资源。以下版本受到影响：Cloud Foundry BOSH 264.14.0之前的264版本，265.7.0之前的265版本，266.8.0之前的266版本，267.2.0之前的267版本。

AI Predicted 7.5 Difficulty: Easy EPSS 1.48% · P74

Possible ATT&CK Techniques 2 AI

T1079 T1040 · Network Sniffing
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I. Basic Information for CVE-2018-11083

Vulnerability Information
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Vulnerability Title
Bosh accepts refresh tokens in place of an access token
Source: CVE Program / CVE List V5
Vulnerability Description
Cloud Foundry BOSH, versions v264 prior to v264.14.0 and v265 prior to v265.7.0 and v266 prior to v266.8.0 and v267 prior to v267.2.0, allows refresh tokens to be as access tokens when using UAA for authentication. A remote attacker with an admin refresh token given by UAA can be used to access BOSH resources without obtaining an access token, even if their user no longer has access to those resources.
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
Cloud Foundry BOSH 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cloud Foundry BOSH中存在安全漏洞，该漏洞源于在使用UAA进行身份验证时程序允许将refresh令牌当作access令牌使用。远程攻击者可借助admin refresh令牌利用该漏洞访问BOSH资源。以下版本受到影响：Cloud Foundry BOSH 264.14.0之前的264版本，265.7.0之前的265版本，266.8.0之前的266版本，267.2.0之前的267版本。
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
Cloud Foundry BOSH 264 ~ v264.14.0 -

II. Public POCs for CVE-2018-11083

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III. Intelligence Information for CVE-2018-11083

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Security Blog Posts for CVE-2018-11083 (1)

Same Patch Batch · Cloud Foundry · 2018-10-05 · 3 CVEs total

CVE-2018-11082 Cloud Foundry UAA MFA does not prevent brute force of MFA code
CVE-2018-1264 Log Cache logs UAA client secret on startup

IV. Related Vulnerabilities

Same product: BOSH
Same vendor: Cloud Foundry