CVE-2017-9804
In Apache Struts 2.3.7 through 2.3.33 and 2.5 through 2.5.12, if an application allows entering a 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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Apache Struts 2.3.7 through 2.3.33 and 2.5 through 2.5.12, if an application allows entering a 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. NOTE: this vulnerability exists because of an incomplete fix for S2-047 / CVE-2017-7672.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 8.24% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- apache/struts
- Source
- security@apache.org
References
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-003.txtThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/100612Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039261Third Party Advisory, VDB Entry
- https://security.netapp.com/advisory/ntap-20180629-0001/
- https://struts.apache.org/docs/s2-050.htmlPatch, Vendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2Third Party Advisory
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-003.txtThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/100612Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039261Third Party Advisory, VDB Entry
- https://security.netapp.com/advisory/ntap-20180629-0001/
- https://struts.apache.org/docs/s2-050.htmlPatch, Vendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.