CVSS 7.5 · High EPSS 0,91%
Kerentanan Improper Encoding or Escaping of Output pada apache log4j. Skor CVSS 3.1 7.5 (High) menurut NVD.
The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing malformed XML output. Conforming XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log processing systems to drop or fail to index affected records. Two groups of users are affected: * Those using Log4j1XmlLayout directly in a Log4j Core 2 configuration file. * Those using the Log4j 1 configuration compatibility layer with org.apache.log4j.xml.XMLLayout specified as the layout class. Users are advised to upgrade to Apache Log4j 1-to-Log4j 2 bridge version 2.25.4, which corrects this issue. Note: The Apache Log4j 1-to-Log4j 2 bridge is deprecated and will not be present in Log4j 3. Users are encouraged to consult the Log4j 1 to Log4j 2 migration guide https://logging.apache.org/log4j/2.x/migrate-from-log4j1.html , and specifically the section on eliminating reliance on the bridge.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| apache | log4j | Versi 2.7 hingga sebelum 2.25.4 |
| apache | log4j | Versi 3.0.0 alpha1 |
| apache | log4j | Versi 3.0.0 alpha1_rc1 |
| apache | log4j | Versi 3.0.0 alpha1_rc2 |
| apache | log4j | Versi 3.0.0 beta1 |
| apache | log4j | Versi 3.0.0 beta2 |