Multiple vulnerabilities in MySQL Cluster

Published: 2021-07-20

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-2411 CVE-2021-22884
CWE-ID	CWE-20 CWE-350
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	MySQL Cluster Web applications / Remote management & hosting panels
Vendor	Oracle

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU55093

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-2411

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The vulnerability exists due to improper input validation within the Cluster: JS module component in MySQL Cluster. A remote non-authenticated attacker can exploit this vulnerability to perform service disruption.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MySQL Cluster: 8.0.16 - 8.0.25

External links

http://www.oracle.com/security-alerts/cpujul2021.html?62368

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) DNS rebinding

EUVDB-ID: #VU50955

Risk: Medium

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

CVE-ID: CVE-2021-22884

CWE-ID: CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action