Security Bulletin
Summary
IBM Watson Discovery for IBM Cloud Pak for Data contains a vulnerable version of Nginx.
Vulnerability Details
CVEID: CVE-2021-3618
DESCRIPTION: Sendmail, vsftpd and NGINX could provide weaker than expected security, caused by an ALPACA (application layer protocol content confusion) attack, which exploits TLS servers implementing different protocols but using compatible certificates. By using man-in the-middle attack techniques, a remote attacker with access to victim's traffic at the TCP/IP layer could redirect traffic from one subdomain to another, resulting in a valid TLS session. The session breaks the authentication of TLS and the packages become vulnerable to cross-protocol attacks.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207761 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| Watson Discovery | 4.0.0-4.5.0 |
Remediation/Fixes
Upgrade to IBM Watson Discovery 4.5.1
https://cloud.ibm.com/docs/discovery-data?topic=discovery-data-install
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
13 Jul 2022: 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:
03 August 2022
UID
ibm16603691