Multiple vulnerabilities in MySQL Cluster



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
 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

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

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

CPE2.3 External links

https://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

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-2021-22884

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DNS rebinding attack.

The vulnerability exists due to the application whitelist includes the “localhost6” name. When “localhost6” is not present in /etc/hosts, it is treated an ordinary domain that is resolved via DNS, i.e., over network. If the attacker controls the victim's DNS server or can spoof its responses, the DNS rebinding protection can be bypassed by using the “localhost6” domain.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MySQL Cluster: 8.0.16 - 8.0.25

CPE2.3
External links

https://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.



###SIDEBAR###