Security Bulletin: There are multiple vulnerabilities in Go related packages that are shipped with IBM CICS TX Standard.

2024-03-1212:46:23

www.ibm.com

openssh

machine-in-the-middle

golang go

sensitive information

weaker security

directory traversal

module fetch

7.9 High

AI Score

Confidence

High

0.962 High

EPSS

Percentile

99.5%

JSON

Summary

There are multiple vulnerabilities in Go related packages that are shipped with IBM CICS TX Standard. An update to IBM CICS TX Standard has been released to address these vulnerabilities.

Vulnerability Details

CVEID:CVE-2023-48795
**DESCRIPTION:**OpenSSH is vulnerable to a machine-in-the-middle attack, caused by a flaw in the extension negotiation process in the SSH transport protocol when used with certain OpenSSH extensions. A remote attacker could exploit this vulnerability to launch a machine-in-the-middle attack and strip an arbitrary number of messages after the initial key exchange, breaking SSH extension negotiation and downgrading the client connection security.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/275282 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/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-2023-45284
**DESCRIPTION:**Golang Go could provide weaker than expected security, caused by the failure to correctly detect reserved device names in some cases by the IsLocal function in the filepath package. An attacker could exploit this vulnerability to report “COM1”, and reserved names “COM” and “LPT” followed by superscript 1, 2, or 3 as local.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/270989 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-2023-45283
**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)

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)

**IBM X-Force ID:**250518
**DESCRIPTION:**golang-jwt jwt-go is vulnerable to a denial of service, caused by a token without ExpiresAT. By presenting an empty token, a local attacker could exploit this vulnerability to cause a panic.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/250518 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)