Description

A Spring MVC or Spring WebFlux application running on JDK 9+ may be vulnerable to remote code execution (RCE) via data binding. The specific exploit requires the application to run on Tomcat as a WAR deployment. If the application is deployed as a Spring Boot executable jar, i.e. the default, it is not vulnerable to the exploit. However, the nature of the vulnerability is more general, and there may be other ways to exploit it.

These are the prerequisites for the exploit:

• JDK 9 or higher
• Apache Tomcat as the Servlet container
• Packaged as WAR
• spring-webmvc or spring-webflux dependency

Affected Spring Products and Versions

• Spring Framework
  • 5.3.0 to 5.3.17
  • 5.2.0 to 5.2.19
  • Older, unsupported versions are also affected

Mitigation

Users of affected versions should apply the following mitigation: 5.3.x users should upgrade to 5.3.18+, 5.2.x users should upgrade to 5.2.20+. No other steps are necessary. There are other…

Description

In Spring Cloud Function versions 3.1.6, 3.2.2 and older unsupported versions, when using routing functionality it is possible for a user to provide a specially crafted SpEL as a routing-expression that may result in remote code execution and…

Description

In Spring Framework versions 5.3.0 - 5.3.16, 5.2.0 - 5.2.19, and older unsupported versions, it is possible for a user to provide a specially crafted SpEL expression that may cause a denial of service condition.

Affected Spring Products and…

Description

Applications using Spring Cloud Gateway that are configured to enable HTTP2 and no key store or trusted certificates are set will be configured to use an insecure TrustManager. This makes the gateway able to connect to remote services with invalid…

Description

Applications using Spring Cloud Gateway are vulnerable to a code injection attack when the Gateway Actuator endpoint is enabled, exposed and unsecured. A remote attacker could make a maliciously crafted request that could allow arbitrary remote…

Description

In Spring Framework versions 5.3.0 - 5.3.13, 5.2.0 - 5.2.18, and older unsupported versions, it is possible for a user to provide malicious input to cause the insertion of additional log entries. This is a follow-up to CVE-2021-22096 that protects…

Description

The Spring AMQP Message object, in its toString() method, will create a new String object from the message body, regardless of its size.

This can cause an OOM Error with a large message body.

Affected Spring Products and Versions

• Spring AMQP
  • 2.2.0 - 2.2.19
  • 2.3.0 - 2.3.11

Mitigation

Users…

Description

Applications using both spring-cloud-netflix-hystrix-dashboard and spring-boot-starter-thymeleaf expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at /hystrix/monitor…

Description

Applications using Spring Cloud Gateway are vulnerable to specifically crafted requests that could make an extra request on downstream services.

Affected Spring Products and Versions

• Spring Cloud Gateway
  • 3.0.0 to 3.0.4
  • 2.2.0.RELEASE to 2.2.9.RELEASE
  • Older, unsupported versions are also affected

Mitigation

Users of affected versions should apply the following mitigation: 3.0.x users should upgrade to 3.0.5+, 2.2.x users should upgrade to 2.2.10.RELEASE+. No other steps are necessary. Releases that have fixed this issue include:

• Spring Cloud Gateway
  • 3.0.5+
  • …

Description

Applications using type-level @RequestMappingannotations over Feign client interfaces, can be involuntarily exposing endpoints corresponding to @RequestMapping-annotated interface methods. Although a response is not returned for a request sent in…