Security Bulletin: IBM Sterling Connect:Direct for UNIX Allows a User with Sudo Access Restricted to Certain Connect:Direct Executable Files to Expand Access Beyond the Restriction (CVE-2018-1903)
UNIX system administrators may grant access to run certain executable files with expanded privilege via the sudo utility. Connect:Direct for UNIX has a vulnerability that could allow a user to escape this sudo executable file restriction and perform unauthorized commands with expanded privilege.
DESCRIPTION: IBM Sterling Connect:Direct for UNIX could allow a user with restricted sudo access on a system to manipulate CD UNIX to gain full sudo access.
CVSS Base Score: 6.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152532 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
IBM Sterling Connect:Direct for Unix 4.3.0
IBM Sterling Connect:Direct for Unix 4.2.0
|6.0.0||IT26865||Apply 220.127.116.11.iFix017, available in cumulative iFix018 on Fix Central|
|4.3.0||IT26865||Apply 18.104.22.168.iFix027, available in cumulative iFix029 on Fix Central|
Apply 22.214.171.124.iFix097, available in cumulative iFix098 on Fix Central
For IBM Sterling Connect:Direct for Unix versions 4.1.0 and older, IBM recommends upgrading to a fixed, supported version of the product.
Workarounds and Mitigations
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29 March 2019: 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.
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.
More support for:
Sterling Connect:Direct for UNIX
Software version: 4.2.0, 4.3.0, 6.0.0
Operating system(s): AIX, HP-UX, Linux, Solaris
Reference #: 0875386
Modified date: 01 April 2019