Spring Security Advisories

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RFD Protection Bypass via jsessionid

HIGH | SEPTEMBER 17, 2020 | CVE-2020-5421

Description

In Spring Framework versions 5.2.0 - 5.2.8, 5.1.0 - 5.1.17, 5.0.0 - 5.0.18, 4.3.0 - 4.3.28, and older unsupported versions, the protections against RFD attacks from CVE-2015-5211 may be bypassed depending on the browser used through the use of a jsessionid path parameter.

Affected Spring Products and Versions

Spring Framework:

  • 5.2.0.RELEASE - 5.2.8.RELEASE
  • 5.1.0.RELEASE - 5.1.17.RELEASE
  • 5.0.0.RELEASE - 5.0.18.RELEASE
  • 4.3.28.RELEASE and earlier

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.
Fix versionAvailability
5.2.9.RELEASEOSS
5.1.18.RELEASEOSS
5.0.19.RELEASEOSS
4.3.29.RELEASEOSS

No further mitigation steps are necessary.

Credit

This issue was identified and responsibly reported by Keitaro Yamazaki / Ierae Security.

References

History

  • 2020-09-17: Initial vulnerability report published.

Reporting a vulnerability

To report a security vulnerability for a project within the Spring portfolio, see the Security Policy

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