Code Injection in ClickHouse - CVE-2019-18657
Published: November 1, 2019
Vulnerability identifier: #VU22472
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-18657
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the "url" table function. A remote attacker can send a specially crafted request and inject arbitrary HTTP headers on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
ClickHouse
How to mitigate CVE-2019-18657
Install updates from vendor's website.
ClickHouse - update to 19.13.5.44