Security Bulletin
Summary
IBM Resilient could disclose sensitive information by allowing a user to enumerate usernames. An attacker may use this to determine if a user exists or not.
Vulnerability Details
CVEID: CVE-2020-4635
DESCRIPTION: IBM Resilient could disclose sensitive information by allowing a user to enumerate usernames.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185502 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| Resilient OnPrem | IBM Security SOAR |
Remediation/Fixes
Users must upgrade to v40.1 of IBM Resilient in order to obtain a fix for this vulnerability. This version implements a rate-limiting and fuzzing feature to defend against such attacks.
You can upgrade the platform by following the instructions in the "Upgrade Procedure" section in the IBM Knowledge Center.
Workarounds and Mitigations
None
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References
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
16 Mar 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
17 March 2021
UID
ibm16431265