Denial of service in IBM MQ

1) Improper input validation

EUVDB-ID: #VU14026

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1503

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.

The vulnerability exists due to an error when processing malicious input. A remote attacker can send messages containing specially crafted headers to the target RCVR or CLUSRCVR type channels to cause the system to enter retry status and cause transmission of subsequent messages to fail.

Mitigation

Update to version 8.0.0.10, 9.0.0.4.

Vulnerable software versions

IBM MQ: 7.5 - 9.0.0.3

External links

http://www-01.ibm.com/support/docview.wss?uid=swg22015617

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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