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Security Bulletin: Vulnerabilities in Informix Dynamic Server and Informix Open Admin Tool

Security Bulletin


IBM Informix Dynamic Server is vulnerable to Sweet32: Birthday attacks on 64-bit block ciphers in TLS. Both IBM Informix Dynamic Server and IBM Informix Server Open Admin Tool are vulnerable to a Remote Code Execution Vulnerability.

Vulnerability Details

CVEID: CVE-2016-2183
OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the DES/3DES cipher, used as a part of the SSL/TLS protocol. By capturing large amounts of encrypted traffic between the SSL/TLS server and the client, a remote attacker able to conduct a man-in-the-middle attack could exploit this vulnerability to recover the plaintext data and obtain sensitive information. This vulnerability is known as the SWEET32 Birthday attack.
CVSS Base Score: 3.7
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2017-1092
IBM Informix Open Admin Tool could allow an unauthorized user to execute arbitrary code as system admin on Windows servers.
CVSS Base Score: 9.8
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM Informix Dynamic Server v 11.50.xCn
IBM Informix Dynamic Server v 11.70.xCn
IBM Informix Dynamic Server v 12.10.xCn


IBM Informix Dynamix Server (including Open Admin Tool)12.10.xC8W2Fix Central
IBM Informix Dynamix Server (including Open Admin Tool)11.70.xC9Fix Central
IBM Informix Dynamix Server (including Open Admin Tool)11.50.xC9Contact Support or upgrade to a version listed above.

Workarounds and Mitigations


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The remote code execution vulnerability was reported to IBM by an independent security researcher working with Beyond Security’s SecuriTeam Secure Disclosure program.

Change History

11 May 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.


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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

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Document Information

Modified date:
16 June 2018