CVE-2021-44832
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 97.9% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 97.9% in the next 30 days (EPSS).
- Severity: 6.6 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 97.9% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Apache log4j < 2.3.2
- Apache log4j < 2.12.4
- Apache log4j < 2.17.1
- Apache log4j 2.0
- Oracle Communications Diameter Signaling Router ≤ 8.5.1.0
- Oracle Communications Interactive Session Recorder 6.3
- Oracle Communications Interactive Session Recorder 6.4
- Oracle Primavera Gateway ≤ 17.12.11
Attack profile CVSS 3.1 · 6.6
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-44832.md and follow it. Check whether this project is affected by CVE-2021-44832. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://issues.apache.org/jira/browse/LOG4J2-3293
- https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://issues.apache.org/jira/browse/LOG4J2-3293
- https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
References
- http://www.openwall.com/lists/oss-security/2021/12/28/1
- https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdf
- https://issues.apache.org/jira/browse/LOG4J2-3293
- https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143
- https://lists.debian.org/debian-lts-announce/2021/12/msg00036.html
- 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/
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- http://www.openwall.com/lists/oss-security/2021/12/28/1
- https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdf
- https://issues.apache.org/jira/browse/LOG4J2-3293
- https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143
- https://lists.debian.org/debian-lts-announce/2021/12/msg00036.html
- 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/
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html