SARA / Free Tools / CVE / CVE-2017-7672

CVE-2017-7672 — If an application allows enter an URL in a form field and built-in URLValidator

If an application allows enter an URL in a form field and built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL. Solution is to upgrade to Apache Struts version 2.5.12.

CVSS

5.9 MEDIUM

EPSS

1.35% (top 19.80%)

CWE

—

Published

2017-07-13T15:29:00.363

Last modified

2026-05-13T00:24:29.033

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

CVE-2017-9805

Cited in vendor advisory

08Timeline

Published: 2017-07-13T15:29:00.363
Last modified: 2026-05-13T00:24:29.033

09References

struts.apache.org — http://struts.apache.org/docs/s2-047.html
www.oracle.com — http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.…
www.securityfocus.com — http://www.securityfocus.com/bid/99563
www.securitytracker.com — http://www.securitytracker.com/id/1039114
lists.apache.org — https://lists.apache.org/thread.html/3795c4dd46d9ec75f4a6eb9eca11c11edd3e796c6c1…
security.netapp.com — https://security.netapp.com/advisory/ntap-20180706-0002/
struts.apache.org — http://struts.apache.org/docs/s2-047.html
www.oracle.com — http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.…
www.securityfocus.com — http://www.securityfocus.com/bid/99563
www.securitytracker.com — http://www.securitytracker.com/id/1039114

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