Description

A Spring MVC or Spring WebFlux application that handles file uploads is vulnerable to DoS attack if it relies on data binding to set a MultipartFile or javax.servlet.Part to a field in a model object.

Affected Spring Products and Versions

• Spring Framework
  • 5.3.0 to 5.3.19
  • 5.2.0 to 5.2.21
  • Older, unsupported versions are also affected

Mitigation

Users of affected versions should apply the following mitigation: 5.3.x users should upgrade to 5.3.20; 5.2.x users should upgrade to 5.2.22. No other steps are necessary. Releases that have fixed this issue include:

• Spring Framework
  • 5.3.20
  • 5.2.22

Credit

This vulnerability was responsibly reported to VMware by Rob Ryan from Adobe Inc. Related variations were also reported by WeBin Lab of Dbappsecurity and by Vivek Sharm from Arcesium.

References

• https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

History

• 2022-05-11: Initial vulnerability report published.