IBM InfoSphere Information Server update for Spring Framework

Published: 2023-05-23

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-20860 CVE-2023-20861
CWE-ID	CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	IBM InfoSphere Information Server Server applications / Database software
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU75561

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-20860

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an input validation error caused by using the wildcard ("**") as a pattern in Spring Security configuration with the mvcRequestMatcher, which creates a mismatch in pattern matching between Spring Security and Spring MVC. A remote attacker can bypass certain security restrictions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM InfoSphere Information Server: 11.7 - 11.7.1.4

CPE2.3

External links

https://www.ibm.com/support/pages/node/6988683

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Input validation error

EUVDB-ID: #VU75562