CVE-2021-44832
MEDIUM severity · CVSS 6.6 · Improper input validation
6.6CVSS MEDIUM
Summary
Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack when a configuration uses a JDBC Appender with a JNDI LDAP data source URI when an attacker has control of the target LDAP server. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredHigh
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)98%
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://issues.apache.org/jira/browse/LOG4J2-3293 ↗
Additional information
- NVD record
- https://issues.apache.org/jira/browse/LOG4J2-3293Patch
- https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143Advisory
- http://www.openwall.com/lists/oss-security/2021/12/28/1Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdfAdvisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00036.htmlAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVV25FXL4FU5X6X5BSL7RLQ7T6F65MRA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57MPJUW3MA6QGWZRTMCHHMMPQNVKGFC/
- https://security.netapp.com/advisory/ntap-20220104-0001/Advisory