Security Bulletin: Vulnerabilities in HAProxy Watson Knowledge Catalog for IBM Cloud Pak for Data

Vulnerability Details

CVEID:   CVE-2021-39241
DESCRIPTION:   HAProxy could allow a remote attacker to bypass security restrictions, caused by improper input validation by the ":method" field. By sending a specially-crafted request, an attacker could exploit this vulnerability to allow a request to be routed to a wrong server.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207699 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:   CVE-2021-39242
DESCRIPTION:   HAProxy could allow a remote attacker to bypass security restrictions, caused by the mishandling of mismatch between ":authority" and "Host" headers. By sending a specially-crafted request, an attacker could exploit this vulnerability to control the HTTP Host header.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207700 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

CVEID:   CVE-2021-39240
DESCRIPTION:   HAProxy could allow a remote attacker to obtain sensitive information, caused by improper validatiing if scheme and path portions of a URI have the expected characters. By sending a specially-crafted request, an attacker could exploit this vulnerability to see a different authority or URL prefix, and use this information to launch further attacks against the affected system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207698 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)