Security Bulletin
Summary
There are multiple vulnerabilities in Network Time Protocol (NTP) implementation that is used by WebSphere DataPower XC10 Appliance. These vulnerabilities addressed include the ability to crash application and disable ntp service.
Vulnerability Details
CVEID: CVE-2016-7426
DESCRIPTION: NTP is vulnerable to a denial of service, caused by the improper handling of invalid server responses. By sending specially crafted packets with spoofed source address, a remote attacker could exploit this vulnerability to a denial of service.
CVSS Base Score: 1.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119094 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-7433
DESCRIPTION: NTP is vulnerable to a denial of service, caused by the inclusion of the root delay allowing for an incorrect root distance calculation. An attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 1.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119095 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-9310
DESCRIPTION: NTP is vulnerable to a denial of service, caused by an error in the control mode (mode 6) functionality. By sending specially crafted control mode packets, a remote attacker could exploit this vulnerability to obtain sensitive information and cause the application to crash.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119087 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
CVEID: CVE-2016-9311
DESCRIPTION: NTP is vulnerable to a denial of service, caused by a NULL pointer dereference when trap service has been enabled. By sending specially crafted packets, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 4.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119086 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2016-7429
DESCRIPTION: NTP is vulnerable to a denial of service, caused by an attack on interface selection. By sending specially crafted packets with spoofed source address, a physical attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 1.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119093 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L)
Affected Products and Versions
WebSphere DataPower XC10 Appliance Version 2.1
WebSphere DataPower XC10 Appliance Version 2.5
Remediation/Fixes
Apply an interim fix, according to the table below. Interim fixes are associated with the original APAR that is documented in the table. Because these APAR references might be updated to more recent APARs, see the links in the table for the most recent interim fix information.
Product | Version | APAR | Link to interim fix |
WebSphere DataPower XC10 Appliance V2.1 on appliance 9235-92X | 2.1 | IT19817 | Refer to the Version 2.1 table in Recommended fixes for WebSphere DataPower XC10 Appliance. |
WebSphere DataPower XC10 Appliance V2.1 on appliance 7199-92X | 2.1 | IT19817 | Refer to the Version 2.1 table in Recommended fixes for WebSphere DataPower XC10 Appliance. |
WebSphere DataPower XC10 Appliance V2.5 on appliance 7199-92X | Version 2.5 Important: See More information link and follow instructions to determine if you have an old or newer SSD driver on your appliance using the show ssd-version command. | IT19817 | Refer to the Version 2.5 table in Recommended fixes for WebSphere DataPower XC10 Appliance. |
WebSphere DataPower XC10 Appliance V2.5 virtual image | 2.5 | IT19817 | Refer to the Version 2.5 table in Recommended fixes for WebSphere DataPower XC10 Appliance. |
Workarounds and Mitigations
None
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References
Change History
30 April 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:
15 June 2018
UID
swg22001667