IBM CICS TX Standard and Advanced update for Go

Published: 2023-12-07

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-39318 CVE-2023-39319
CWE-ID	CWE-79
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	IBM CICS TX Advanced Universal components / Libraries / Software for developers IBM CICS TX Standard Universal components / Libraries / Software for developers
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU80572

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39318

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the html/template package when handling HMTL-like "" comment tokens, nor hashbang "#!" comment tokens, in <script> contexts. A remote attacker can pass specially crafted input to the application and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM CICS TX Advanced: before 11.1.0.0 ifix15

IBM CICS TX Standard: before 11.1.0.0 ifix15

External links

http://www.ibm.com/support/pages/node/7091176

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Cross-site scripting

EUVDB-ID: #VU80573