RCE in Broadcom Spring Web Flow
CVE-2017-4971
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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.147 (96.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.159 · newest: 0.147 · change: -0.012
Affected products
- Broadcom Spring Web Flow — versions 2.4.0, 2.4.1, 2.4.2
- Pivotal Spring Web Flow — versions 2.4.0, 2.4.1, 2.4.2
- Spring Web Flow — versions Spring Web Flow
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/98785 (VDB Entry, Third Party Advisory, vdb-entry)
- pivotal.io/security/cve-2017-4971 (Patch, Mitigation, Vendor Advisory)
- jira.spring.io/browse/SWF-1700 (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2017-4971?
- CVE-2017-4971 is a medium-severity vulnerability in Broadcom Spring Web Flow, classified under Initialization of a Resource with an Insecure Default. CVSS score: 5.9/10. Published 2017-06-13.
- How severe is CVE-2017-4971?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2017-4971 known to be exploited?
- 30 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.