CVE-2018-15795: Use of Cryptographically Weak PRNG in Pivotal CredHub Service Broker
Summary
CVE-2018-15795: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Pivotal CredHub Service Broker. Affects org.springframework.credhub:spring-credhub-core versions < 1.1.0. Fixed in 1.1.0. How to fix ↓
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Background
Pivotal CredHub Service Broker is a Maven package called 'org.springframework.credhub:spring-credhub-core'. It is a service broker that generates a UAA client for users of the CredHub Service. The package is vulnerable to a guessable form of random number generation, which can allow a remote malicious user to guess the client secret and obtain or modify credentials for CredHub Service users.
Vulnerability Detail
The vulnerability in Pivotal CredHub Service Broker arises from the use of a weak pseudo-random number generator (PRNG) in creating the service broker's UAA client. This makes it possible for a remote attacker to guess the client secret and gain unauthorized access to or manipulate credentials of CredHub Service users. The impact of this vulnerability can be significant, as it compromises the security and confidentiality of sensitive user data.
How To Fix
Latest published version: 4.1.0 as of 23 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
1.1.0
This is the first release that contains the fix.
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Workaround
There is no specific workaround mentioned for this vulnerability. The recommended solution is to update the package to the fixed version.
Conclusion
The vulnerability in Pivotal CredHub Service Broker, caused by the use of a weak PRNG, can lead to unauthorized access to or manipulation of user credentials. It is crucial to update the package to version 1.1.0 or later to mitigate this vulnerability. For additional assistance, please reach out to DevNack.com.
See every vulnerability recorded for org.springframework.credhub:spring-credhub-core →
FAQ
Pivotal CredHub Service Broker is a service broker that generates a UAA client for users of the CredHub Service. It is used to manage and secure credentials in cloud-native applications.
The vulnerability allows a remote attacker to guess the client secret and gain unauthorized access to or manipulate credentials of CredHub Service users.
To fix this vulnerability, update the Pivotal CredHub Service Broker package to version 1.1.0 or later.
No specific workaround is mentioned for this vulnerability. Updating the package to the fixed version is the recommended solution.
For further support on vulnerability remediation, you can contact info@devnack.com.
