Security Bulletin: Privilege Escalation in Notes System Diagnostic Service of both IBM Notes and Domino (CVE-2018-1771)
IBM Notes and Domino (on Windows only) contain a privilege escalation vulnerability. By crafting a command line sent via the shared memory IPC, the Notes System Diagnostic (NSD) service can be tricked into executing a malicious dll chosen by the attacker. IBM addresses this vulnerability in the fix below.
DESCRIPTION: IBM Notes and Domino could allow an attacker to execute commands on the system by triggering a buffer overflow in the parsing of command line arguments passed to nsd.exe.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/148687 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
IBM Domino 9.0.1 through 9.0.1 FP10 IF4
IBM Domino 9.0 through 9.0 IF4
IBM Notes 9.0.1 through 9.0.1 FP10 IF5
IBM Notes 9.0 through 9.0 IF4
Please note that IBM Notes and Domino 10 no longer permit running NSD as a service so are not vulnerable to this attack.
|IBM Domino||9.0.1 FP10IF5||Please see this Interim Fix Technote for download links to Domino 901FP10IF5|
|IBM Notes Standard||9.0.1 FP10IF6||Fix Central ID Notes_901FP10IF6_W32_Standard|
|IBM Notes Basic||9.0.1 FP10IF6||Fix Central ID Notes_901FP10IF6_W32_Basic|
For earlier releases, IBM recommends upgrading to a fixed, supported release. However, customers who remain on Notes and Domino 9.0 may open a Service Request with IBM Support referencing SPR #EPORB3HQ6K for a custom hotfix.
Note this is fixed in Notes/Domino 10.0.
Workarounds and Mitigations
Do not run NSD as a Windows Service.
Get Notified about Future Security Bulletins
This vulnerability was reported to IBM by Lasse Trolle Borup of Langkjaer Cyber Defence
30 Nov 2018: Initial Publication
*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.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
|IBM Notes||Notes System Diagnostic Service||Windows||All Versions|
More support for:
Component: Notes System Diagnostic (NSD)
Software version: Domino 9.0, Domino 9.0.1
Operating system(s): Windows
Reference #: 0743405
Modified date: 18 December 2018