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CVE-2018-15796— Signing Key Extraction in Bits Service Release

Quick assessment

Affected
Cloud Foundry bits-service-release
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 Bits Service Release是美国Cloud Foundry基金会的一款能够将“位操作”封装到可单独扩展的服务中的程序。 Cloud Foundry Bits Service Release 2.14.0之前版本中存在安全漏洞，该漏洞源于程序使用了不安全的散列算法来签名URL。远程攻击者可利用该漏洞提取签名密钥，获取全部的读写权限

AI Predicted 9.8 Difficulty: Easy EPSS 0.71% · P51
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I. Basic Information for CVE-2018-15796

Vulnerability Information
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Vulnerability Title
Signing Key Extraction in Bits Service Release
Source: CVE Program / CVE List V5
Vulnerability Description
Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.
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 Bits Service Release 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cloud Foundry Bits Service Release是美国Cloud Foundry基金会的一款能够将“位操作”封装到可单独扩展的服务中的程序。 Cloud Foundry Bits Service Release 2.14.0之前版本中存在安全漏洞，该漏洞源于程序使用了不安全的散列算法来签名URL。远程攻击者可利用该漏洞提取签名密钥，获取全部的读写权限
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
Cloud Foundry bits-service-release all versions ~ 2.14.0 -

II. Public POCs for CVE-2018-15796

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III. Intelligence Information for CVE-2018-15796

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Security Blog Posts for CVE-2018-15796 (1)

IV. Related Vulnerabilities

Same vendor: Cloud Foundry

V. Comments for CVE-2018-15796

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