Security Bulletin: IBM i Modernization Engine for Lifecycle Integration is vulnerable to multiple vulnerabilities

Summary

There are multiple vulnerabilities in components of IBM i Modernization Engine for Lifecycle Integration as described in the Vulnerability Details section. Golang html package is vulnerable to cross-site scripting (CVE-2023-3978). Golang Go is vulnerable to a denial of service (CVE-2023-45288). Golang autocert package could allow a remote attacker to traverse directories on the system (CVE-2022-30636). These components are used in IBM i Modernization Engine for Lifecycle Integration for infrastructure support in the platform. This bulletin identifies the steps to take to address the vulnerabilities as described in the remediation/fixes section.

Vulnerability Details

CVEID:CVE-2022-30636
**DESCRIPTION:**Golang autocert package could allow a remote attacker to traverse directories on the system, caused by a flaw in the the DirCache implementation. An attacker could send a specially crafted URL request containing “dot dot” sequences (/…/) to view arbitrary files on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/297843 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-2023-3978
**DESCRIPTION:**Golang html package is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using a specially crafted URL to execute script in a victim’s Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/262415 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID:CVE-2023-45288
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a memory exhaustion flaw due to flood of CONTINUATION frames in the HTTP/2 protocol stack in the net/http and x/net/http2 packages. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/286962 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)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading.

Workarounds and Mitigations

None