Security Bulletin
Summary
Security vulnerabilities have been discovered in NTP used with IBM Security Network Protection.
Vulnerability Details
CVEID: CVE-2015-1798
DESCRIPTION: Network Time Protocol (NTP) Project NTP daemon (ntpd) could allow a remote attacker to bypass security restrictions, caused by the acceptance of packets that do not contain a message authentication code (MAC) as valid packets wen configured for symmetric key authentication. An attacker could exploit this vulnerability using man-in-the-middle techniques to bypass the authentication process.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/102051 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:A/AC:M/Au:N/C:P/I:P/A:P)
CVEID: CVE-2015-1799
DESCRIPTION: Network Time Protocol (NTP) Project NTP daemon (ntpd) is vulnerable to a denial of service, caused by an error when using symmetric key authentication. By sending specially-crafted packets to both peering hosts, an attacker could exploit this vulnerability to prevent synchronization.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/102052 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:A/AC:M/Au:N/C:P/I:P/A:P)
CVEID: CVE-2015-3405
DESCRIPTION: Network Time Protocol (NTP) could allow a remote attacker to conduct spoofing attacks, caused by the generation of MD5 symmetric keys on big-endian systems by the ntp-keygen utility. An attacker could exploit this vulnerability using the generated MD5 keys to spoof an NTP client or server.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104387 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Affected Products and Versions
IBM Security Network Protection 5.2
IBM Security Network Protection 5.3
Remediation/Fixes
|
Product | VRMF | Remediation/First Fix |
| IBM Security Network Protection | Firmware version 5.2 | Download 5.2.0.0-ISS-XGS-All-Models-Hotfix-FP0012 from IBM Fix Central and upload and install via the Fix Packs page of the Local Management Interface. |
| IBM Security Network Protection | Firmware version 5.3 | Install Firmware 5.3.1.5 from the Available Updates page of the Local Management Interface, or by performing a One Time Scheduled Installation from SiteProtector. |
Workarounds and Mitigations
None
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References
Change History
12 September 2015: 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:
16 June 2018
UID
swg21966578