Security Bulletin
Summary
There are vulnerabilities in Apache Struts to which the IBM® FlashSystem™ V840 is susceptible. An exploit of these vulnerabilities (CVE-2016-4430, CVE-2016-4431, CVE-2016-4433, and CVE-2016-4436) could allow a remote attacker to perform a cross-site script attack, perform Web cache poisoning, and redirect the victim to an arbitrary site.
Vulnerability Details
CVEID: CVE-2016-4430
DESCRIPTION: Apache Struts is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed expression to bypass token validation. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.
CVSS Base Score: 8.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114185 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVEID: CVE-2016-4431
DESCRIPTION: Apache Struts could allow a remote attacker to bypass security restrictions, caused by an error in the default action method. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass internal security mechanism and redirect the victim to an arbitrary site.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114187 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2016-4433
DESCRIPTION: Apache Struts could allow a remote attacker to bypass security restrictions, caused by an error in the Getter as action method. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass internal security mechanism and redirect the victim to an arbitrary site.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114186 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2016-4436
DESCRIPTION: An unspecified error Apache Struts related to the method used to clean up action name has an unknown impact and attack vector.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114183 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Affected Products and Versions
FlashSystem V840 including machine type and models (MTMs) for all available code levels. MTMs affected include 9846-AE1, 9848-AE1, 9846-AC0, 9848-AC0, 9846-AC1, and 9848-AC1.
Remediation/Fixes
Remediation/Fixes
| V840 MTMs | VRMF | APAR | Remediation/First Fix |
| Storage nodes: 9846-AE1 & 9848-AE1 Controller nodes: 9846-AC0, 9846-AC1, 9848-AC0, & 9848-AC1 | Code fixes are now available, the minimum VRMF containing the fix depends on the code stream: Storage Node VRMF . 1.4 stream: 1.4.6.0 (or later) 1.3 stream: 1.3.0.7 (or later) Controller Node VRMF . 7.6 stream: 7.6.1.7 (or later) 7.7 stream: 7.7.1.5 (or later) alternately: 7.8.0.2 (or later) | N/A | FlashSystem V840 fixes for storage and controller node are available @ IBM’s Fix Central |
Workarounds and Mitigations
None
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References
Acknowledgement
None
Change History
2 March 2017 Original Version Published
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
17 June 2018
UID
ssg1S1010010