IBM CICS TX Standard update for GraphQL Java

This security bulletin contains one medium risk vulnerability.

EUVDB-ID: #VU98137

Risk: Medium

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

CVE-ID:
CVE-2024-40094

CWE-ID:
CWE-770 – Allocation of Resources Without Limits or Throttling

Exploit availability:
Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to GraphQL Java (aka graphql-java) does not properly consider ExecutableNormalizedFields (ENFs) as part of preventing denial of service via introspection queries. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor’s website.

Vulnerable software versions

IBM CICS TX Standard:
before 11.1.0.0 ifix28

CPE2.3

External links

www.ibm.com/support/pages/node/7181694

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. However, proof of concept for this vulnerability is available.