Vulnerability identifier: #VU58977
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: No
Vendor: Apache Foundation
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in JMSAppender, when the attacker has write access to the Log4j configuration. The attacker can provide TopicBindingName and TopicConnectionFactoryBindingName configurations causing JMSAppender to perform JNDI requests that result in remote code execution.
Note this issue only affects Log4j 1.2 when specifically configured to
use JMSAppender, which is not the default.
Install updates from vendor's website.
Vulnerable software versions
Apache Log4j: 1.2.1 - 1.2.17
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?