RCE in Pivotal Spring Web Flow

CVE-2017-8039

An issue was discovered in Pivotal Spring Web Flow through 2.4.5. Applications that do not change the value of the MvcViewFactoryCreator useSpringBinding property which is disabled by default (i.e., set to 'false') can be vulnerable to malicious EL expressions in view states that process form submissions but do not have a sub-element to declare explicit data binding property mappings. NOTE: this issue exists because of an incomplete fix for CVE-2017-4971.

EPSS: 0.010 (58.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

  • Pivotal Spring_web_flow — versions 2.4.0, 2.4.1, 2.4.2
  • N/a Spring Web Flow 2.4.0 To 2.4.5 And Older Unsupported Versions Are Also Affected — versions Spring Web Flow Spring Web Flow 2.4.0 to 2.4.5 and Older unsupported versions are also affected

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-8039?
CVE-2017-8039 is a medium-severity vulnerability in Pivotal Spring Web Flow, classified under Initialization of a Resource with an Insecure Default. CVSS score: 5.9/10. Published 2017-11-27.
How severe is CVE-2017-8039?
Medium severity. CVSS v3 base score is 5.9 out of 10.