#VU59691 SQL injection in Apache Log4j - CVE-2022-23305

Vulnerability identifier: #VU59691

Vulnerability risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-23305

CWE-ID: CWE-89

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Log4j
Universal components / Libraries / Libraries used by multiple products

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in the JDBCAppender. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Note, a non-default configuration with enabled JDBCAppender is required to exploit the vulnerability.

Mitigation
The vulnerability is resolved in Apache Log4j 2.x branch.

Vulnerable software versions

Apache Log4j: 1.2.1 - 1.2.17

---

External links
https://lists.apache.org/thread/pt6lh3pbsvxqlwlp4c5l798dv2hkc85y
https://logging.apache.org/log4j/1.2/index.html

---

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.