Is CVE-2022-23305 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 67%.

What products does CVE-2022-23305 affect?

Tracked products affected include Apache Log4j. Check the version you run to see whether it is affected.

How do I fix CVE-2022-23305?

Apply the vendor fix promptly. An official patch or advisory is available. Upgrade affected products to a fixed version.

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CVE-2022-23305

Q: What is CVE-2022-23305?

CVE-2022-23305 is a critical-severity software vulnerability (SQL injection) with a CVSS score of 9.8. By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the values to be inserted are converters from PatternLayout. The message converter, %m, is likely to always be included. This allows atta

CRITICAL severity · CVSS 9.8 · SQL injection

9.8CVSS CRITICAL

Summary

By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the values to be inserted are converters from PatternLayout. The message converter, %m, is likely to always be included. This allows attackers to manipulate the SQL by entering crafted strings into input fields or headers of an application that are logged allowing unintended SQL queries to be executed. Note this issue only affects Log4j 1.x when specifically configured to use the JDBCAppender, which is not the default. Beginning in version 2.0-beta8, the JDBCAppender was re-introduced with proper support for parameterized SQL queries and further customization over the columns written to in logs. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)67%

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products we track (1)

Apache Log4j

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://www.oracle.com/security-alerts/cpuapr2022.html ↗

CVE-2022-23305

Summary

Impact & exploitability

Affected products we track (1)

Recommendation

Additional information