CVE-2022-23302: Deserialization of untrusted data in JMSSink in Apache Log4j 1.x
JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration or if the configuration references an LDAP service the attacker has access to. The attacker can provide a TopicConnectionFactoryBindingName configuration causing JMSSink to perform JNDI requests that result in remote code execution in a similar fashion to CVE-2021-4104. Note this issue only affects Log4j 1.x when specifically configured to use JMSSink, which is not the default. 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.
Security readout for executives and security teams
This is a high-severity remote code execution risk in obsolete Apache Log4j 1.x, but only in applications configured to use JMSSink. The exposure is narrower than Log4Shell, yet business risk is serious because Log4j 1.x has been end-of-life since 2015 and may remain embedded in older enterprise products. Most exposure is in legacy Java applications, appliances, or third-party products still carrying Log4j 1.x and configured for JMSSink. Default Log4j 1.x usage is not affected by this specific CVE, but unsupported Log4j 1.x remains a broader security liability. Prioritize remediation for any confirmed JMSSink use or business-critical product still running Log4j 1.x. The vulnerability is conditional, not broadly default-exposed, but the underlying component is obsolete and should be removed from supported environments. Mitigation focus: Upgrade from Log4j 1.x to Log4j 2 where application compatibility permits.; Remove unsupported Log4j 1.x from internally maintained applications.; Check vendor advisories for products bundling Log4j 1.x before applying changes..
Prepared
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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cwe · medium confidence lookup
CWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
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1CVSS vectors
3Timeline events
2ADP providers
8Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.