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CVE-2021-45046 is a critical severity vulnerability with a CVSS score of 9.0. Exploits are available; patches have been released and should be applied urgently.
Very high probability of exploitation in the next 30 days
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
The fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allow attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in a remote code execution (RCE) attack.
Only the org.apache.logging.log4j:log4j-core package is directly affected by this vulnerability. The org.apache.logging.log4j:log4j-api should be kept at the same version as the org.apache.logging.log4j:log4j-core package to ensure compatability if in use.
Log4j 2.16.0 fixes this issue by removing support for message lookup patterns and disabling JNDI functionality by default. This issue can be mitigated in prior releases (< 2.16.0) by removing the JndiLookup class from the classpath (example: zip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class).
Log4j 2.15.0 restricts JNDI LDAP lookups to localhost by default. Note that previous mitigations involving configuration such as to set the system property log4j2.formatMsgNoLookups to true do NOT mitigate this specific vulnerability.
| Vendor | Product |
|---|---|
| Siemens | Spectrum Power 7 |
| Siemens |
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
| 6bk1602 0aa12 0tp0 |
| Siemens | Solid Edge Harness Design |
| Siemens | Vesys |
| Siemens | Captial |
| Siemens | Solid Edge Cam Pro |
| Apache | Log4j |
| Siemens | Siguard Dsa |
| Intel | Secure Device Onboard |
| Siemens | Teamcenter |
And 51 more...