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CVE-2023-34053: CVE-2023-34053: Spring Framework server Web Observations DoS Vulnerability

In Spring Framework versions 6.0.0 - 6.0.13, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.

Specifically, an application is vulnerable when all of the following are true:

  • the application uses Spring MVC or Spring WebFlux
  • io.micrometer:micrometer-core is on the classpath
  • an ObservationRegistry is configured in the application to record observations

Typically, Spring Boot applications need the org.springframework.boot:spring-boot-actuator dependency to meet all conditions.

CVE
#vulnerability#web#dos

Description

In Spring Framework versions 6.0.0 - 6.0.13, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.

Specifically, an application is vulnerable when all of the following are true:

  • the application uses Spring MVC or Spring WebFlux
  • io.micrometer:micrometer-core is on the classpath
  • an ObservationRegistry is configured in the application to record observations

Typically, Spring Boot applications need the org.springframework.boot:spring-boot-actuator dependency to meet all conditions.

Affected Spring Products and Versions

Spring Framework

  • 6.0.0 to 6.0.13

Older versions are not affected.

Mitigation

Users of affected versions should apply the following mitigation.

  • Spring Framework 6.0.x users should upgrade to 6.0.14.

No other steps are necessary.

As a temporary workaround, Spring Boot 3.0.x and 3.1.x users can choose to disable web framework observations with the following property: management.metrics.enable.http.server.requests=false

Credit

The issue was identified and responsibly reported by James Yuzawa.

References

  • https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L&version=3.1

Related news

GHSA-v94h-hvhg-mf9h: Spring Framework vulnerable to denial of service

In Spring Framework versions 6.0.0 - 6.0.13, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition. Specifically, an application is vulnerable when all of the following are true: * the application uses Spring MVC or Spring WebFlux * io.micrometer:micrometer-core is on the classpath * an ObservationRegistry is configured in the application to record observations Typically, Spring Boot applications need the org.springframework.boot:spring-boot-actuator dependency to meet all conditions.

CVE-2023-34055: CVE-2023-34055: Spring Boot server Web Observations DoS Vulnerability

In Spring Boot versions 2.7.0 - 2.7.17, 3.0.0-3.0.12 and 3.1.0-3.1.5, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition. Specifically, an application is vulnerable when all of the following are true: * the application uses Spring MVC or Spring WebFlux * org.springframework.boot:spring-boot-actuator is on the classpath

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