Information disclosure in ClickHouse ClickHouse

1) Information disclosure

EUVDB-ID: #VU30819

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-14669

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

ClickHouse MySQL client before versions 1.1.54390 had "LOAD DATA LOCAL INFILE" functionality enabled that allowed a malicious MySQL database read arbitrary files from the connected ClickHouse server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ClickHouse: 1.1.1 - 1.1.54389

CPE2.3

• cpe:2.3:a:clickhouse:clickhouse:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:clickhouse:clickhouse:1.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:clickhouse:clickhouse:1.1.3:*:*:*:*:*:*:*

External links

https://clickhouse.yandex/docs/en/security_changelog/

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.