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Security Bulletin: IBM i2 iBase vulnerable to DLL highjacking (CVE-2020-4623)

Security Bulletin


Summary

i2 iBase is vulnerable to DLL highjacking attacks.

Vulnerability Details

CVEID:   CVE-2020-4623
DESCRIPTION:   IBM i2 iBase could allow a local authenticated attacker to execute arbitrary code on the system, caused by a DLL search order hijacking flaw. By using a specially-crafted .DLL file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/184984 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
IBM i2 iBase8.9.13

Remediation/Fixes

Please visit your IBM customer portal to upgrade to iBase 9

Workarounds and Mitigations

None

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References

Off

Acknowledgement

John Zuccato, Rodney Ryan, Chris Shepherd, Nathan Roane, Kamil Sarbinowski, Vince Dragnea, Troy Fisher and Elaheh Samani from IBM X-Force Ethical Hacking Team.

Change History

21 Jul 2021: 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.

Disclaimer

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.

Document Location

Worldwide

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Document Information

Modified date:
23 July 2021

UID

ibm16474857