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. Apache Tomcat is vulnerable to a denial of service (CVE-2023-44487), vulnerable to HTTP request smuggling (CVE-2023-45648), and could allow a remote attacker to obtain sensitive information (CVE-2023-42795 and CVE-2023-34981) and to conduct phishing attacks (CVE-2023-41080). JSON-java is vulnerable to a denial of service (CVE-2023-5072). These components are used in IBM i Modernization Engine for Lifecycle Integration for infrastructure support in the platform. IBM has addressed the vulnerabilities in IBM i Modernization Engine for Lifecycle Integration with updates to affected components.

Vulnerability Details

CVEID:CVE-2023-44487
**DESCRIPTION:**Multiple vendors are vulnerable to a denial of service, caused by a flaw in handling multiplexed streams in the HTTP/2 protocol. By sending numerous HTTP/2 requests and RST_STREAM frames over multiple streams, a remote attacker could exploit this vulnerability to cause a denial of service due to server resource consumption.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268044 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-42795
**DESCRIPTION:**Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by an incomplete Cleanup vulnerability when recycling various internal objects. By skipping some parts of the recycling process, an attacker could exploit this vulnerability to obtain sensitive information leaking from the current request/response to the next.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268201 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-2023-41080
**DESCRIPTION:**Apache Tomcat could allow a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability in the FORM authentication feature. An attacker could exploit this vulnerability using a specially crafted URL to redirect a victim to arbitrary Web sites.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/264483 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)

CVEID:CVE-2023-45648
**DESCRIPTION:**Apache Tomcat is vulnerable to HTTP request smuggling, caused by improper parsing of HTTP trailer headers. By sending a specially crafted invalid trailer header, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268200 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2023-34981
**DESCRIPTION:**Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by a flaw when a response did not have any HTTP headers set. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to obtain sensitive information, 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/258638 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-2023-5072
**DESCRIPTION:**JSON-java is vulnerable to a denial of service, caused by a bug in the parser. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268485 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading. The issue can be fixed by upgrading to version 1.4.5 or later.

Workarounds and Mitigations

None