Security restrictions bypass in Apache Druid

1) Security restrictions bypass

EUVDB-ID: #VU54554

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-26920

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to a design error in the HTTP InputSource method, which allows a remote authenticated user to view contents of local files on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Druid: 0.1.0 - 0.20.2

CPE2.3

• cpe:2.3:a:apache_foundation:druid:0.19.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.20.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.3.38:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.4.32.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.5.58:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.6.174:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.8.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:druid:0.9.2:*:*:*:*:*:*:*

External links

https://lists.apache.org/thread.html/r29e45561343cc5cf7d3290ee0b0e94e565faab19c20d022df9b5e29c%40%3Cdev.druid.apache.org%3E
https://www.openwall.com/lists/oss-security/2021/07/02/1

Q & A

Can this vulnerability be exploited remotely?

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