Security Bulletin: IBM Event Streams is vulnerable to sensitive information leakage and directory traversal attack due to the Golang related packages (CVE-2023-45285, CVE-2023-39326, CVE-2023-45283).

Summary

Golang Go is used by IBM Event Streams and could allow a remote attacker to obtain sensitive information, caused by a flaws in modules with “.git” suffix and in the net/http package. By sending specially crafted requests, an attacker can attain these privileges.

Vulnerability Details

CVEID:CVE-2023-45285
**DESCRIPTION:**Golang Go could allow a remote attacker to obtain sensitive information, caused by a flaw when using go get to fetch a module with the “.git” suffix. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information from the insecure “git://” protocol, 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/273323 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)

CVEID:CVE-2023-39326
**DESCRIPTION:**Golang Go could allow a remote attacker to obtain sensitive information, caused by a flaw in the net/http package. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to read many more bytes from the network than are in the body, and use this information to launch further attacks against the affected system.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/273322 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2023-45283
**DESCRIPTION:**Golang Go could allow a remote attacker to traverse directories on the system, caused by the failure to recognize paths with a ??\ prefix as a Root Local Device path prefix in the filepath and safefilepath package. An attacker could send a specially crafted URL request containing “dot dot” sequences (/…/) to view arbitrary files on the system.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/270990 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading

Upgrade to IBM Event Streams 11.3.2 by following the upgrading and migrating documentation.

Workarounds and Mitigations

None