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GHSA-vmcp-66r5-3pcp

LowCVSS 2.5 / 10
Published Jul 17, 2024·Last modified Jul 17, 2024
Affected Components(0)

No affected components available

Description

Summary

When utilizing multiple Eureka server service URLs with basic auth and encountering an issue with fetching the service registry, an error is logged with the Eureka server service URLs but only the first URL is masked.

Details

Package: Steeltoe.Discovery.Eureka Package version: 3.2.1 Branch: "release/3.2" File name: DiscoveryClient.cs Line number: 325 Code in question: _logger.LogError(e, "FetchRegistry Failed for Eureka service urls: {EurekaServerServiceUrls}", new Uri(ClientConfig.EurekaServerServiceUrls).ToMaskedString());

Error message in logs: FetchRegistry Failed for Eureka service urls: https://****:****@eureka1.com:443/eureka,https://user:password@eureka2.com:443/eureka

I thought new Uri(clientOptions.EurekaServerServiceUrls) would throw a UriFormatException since there are multiple URLs but my logs are showing two URLs regardless.

PoC

  1. Set Eureka config with multiple server URLs with basic auth
  2. Apologies for not being more descriptive for this step, but I believe we would just need to trigger an exception in FetchFullRegistryAsync.
  3. Check the logs and should see the error

Impact

Vulnerability: Credential leakage in the logs Who does it impact?: Users who are using peer awareness with Spring Eureka

Risk Scores
Base Score
2.5

The vulnerability requires local access to the device to be exploited. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information.

Threat Intelligence
2.3

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Low severity
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