THREATPORT/VULNERABILITY/CVE-2017-4971
MEDIUM SEVERITY

CVE-2017-4971

Spring Web Flow vulnerability

CVSS
5.9
EPSS
15.9%
EPSS pct
97th
Exploited
No known
An issue was discovered in Pivotal Spring Web Flow through 2.4.4. 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.
Affected vendor
Pivotal
Affected product
Spring Web Flow
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness type (CWE)
  • CWE-1188 — Insecure Default Initialization of Resource
Published
2017-06-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 15.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2017-4971

  • Confirm whether Pivotal Spring Web Flow is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-4971.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-4971

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-4971 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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