CVE-2017-9804 — HIGH (7.5) — White Hats Nepal

Vulnerability 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 Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Struts	2.3.7

Related Weaknesses (CWE)

CWE-20

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.PatchThird Party Advisory
http://www.securityfocus.com/bid/100612Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039261Third Party AdvisoryVDB Entry
https://security.netapp.com/advisory/ntap-20180629-0001/
https://struts.apache.org/docs/s2-050.htmlPatchVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Third 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.PatchThird Party Advisory
http://www.securityfocus.com/bid/100612Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039261Third Party AdvisoryVDB Entry
https://security.netapp.com/advisory/ntap-20180629-0001/
https://struts.apache.org/docs/s2-050.htmlPatchVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Third Party Advisory

FAQ

What is CVE-2017-9804?

CVE-2017-9804 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 w...

How severe is CVE-2017-9804?

CVE-2017-9804 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-9804?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Struts.