Can we still use Log4j
Log4j remains a threat in 2023
As the Log4j library is widely used it is likely to still be embedded in large systems and organizations that are not keeping track what is in their software supply chain are most at risk.
Is Log4j still a threat
The widespread vulnerability that first appeared in Apache Log4j in 2021 will continue to be exploited, potentially even in worse ways than we've seen to date. The more worrisome aspect of these threats is that there's a good chance they'll continue to be exploited months or years into the future.
Is Log4J2 safe now
x, the best advice us to use the most recent version. At the time of writing this (2021-03-14), https://logging.apache.org/log4j/2.x/security.html says that log4j 2.3. 2 is safe if you are running the code on a Java 6 JVM. But if you intend to run on a more recent JVM, the latest security patch is advisable.
Should we use Log4j
With log4j, it is possible to store the flow details of our automation in a file or database. Log4j is worked for large as well as small projects. In log4j, we use log statements rather than SOPL statements in the code to know the condition of a project while it is executing.
What happens if I delete Log4j
Removing the Log4j related files does not affect further backup or recovery operations. BDRSuite has also developed a utility that identifies the log4j vulnerability in its installation location then removes the vulnerable file.
Does Log4j 1.2 17 have vulnerability
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.
How critical is Log4j vulnerability
The original Apache Log4j vulnerability (CVE-2021-44228), also known as Log4Shell, is a cybersecurity vulnerability on the Apache Log4j 2 Java library. This security flaw is a Remote Code Execution vulnerability (RCE) – one of the most critical security exposures.
What platforms are affected by Log4j
List of vendors and software affected by the Apache Log4J vulnerability (CVE-2021-44228)
| # | Vendor | Software |
|---|---|---|
| 24 | Apache Foundation | Apache EventMesh |
| 25 | Apereo Foundation | Opencast |
| 26 | Apereo Foundation | Apereo CAS |
| 27 | Apple Inc. | Apple Xcode |
Is Log4j 1.2 12 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. How to fix Deserialization of Untrusted Data
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.
Who is at risk for Log4j
What Specific Devices are at Risk According to ZDNet, “Any device that's exposed to the internet is at risk if it's running Apache Log4J, versions 2.0 to 2.14. 1." This affects both IT and Operational Technology (OT) networks.
Should I delete Log4j files
the vulnerability (the vulnerability was introduced starting in Log4j2), so there is no exploit risk. Removing these files can cause failures in Ant and issues with generating jar files used for custom/interception/transformation scripts. It is not recommended to remove these files.
Why is Log4j on my computer
Log4j is used by developers to keep track of what happens in their software applications or online services. It's basically a huge journal of the activity of a system or application. This activity is called 'logging' and it's used by developers to keep an eye out for problems for users.
Is log4j 1.2 end of life
Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions. CSM version 6.3.
Is log4j 2.17 0 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 1.2 affected by vulnerability
JMSAppender, in log4j 1.2 version, is vulnerable to deserialization of untrusted data if the attacker has the 'write' permissions to the log4j configuration.
Which applications have Log4j
Businesses and systems affectedApache Struts. Log4j is part of the default configuration in the Apache Struts 2 application framework.Apache Solr.Apple iCloud services.Microsoft Minecraft.VMware products.
Who has been hit by Log4j
Top 10 Impacted VendorsAdobe. Adobe found that ColdFusion 2021 is subject to Log4Shell and released a security updateOpens a new window to address the problem on December 14.Cisco.F-Secure.Fortinet.FortiGuard.IBM.Okta.VMware.
Is Log4j 1.2 end of life
Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions. CSM version 6.3.
Is Log4j 2.16 still vulnerable
December 20, 2021
Log4j 2.17 has been released to address a Denial of Service (DoS) vulnerability found in v2. 16 and earlier. 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.
How do I know if I am vulnerable to Log4j
We also use a log inspection rule to detect the vulnerability. The log inspection rule 1011241 – Apache Log4j Remote Code Execution Vulnerability (CVE-2021-44228) looks for JNDI payloads in the access logs, with the default path being /var/log/*/access. log.
Who has been hacked by Log4j
Over a hundred vendors confirmed to be affected including: Microsoft, Amazon Web Services, Netflix and Oracle, and experts say that the flaw has gone unnoticed since 2013.
Do I need to worry about log4j
As mentioned previously, cybersecurity experts considered the Log4j exploit critical due to the ease of exploitation and the fact that no authentication was required to perform it. Add the prevalence of the vulnerability of public-facing systems to this and you have yourself a major cause for concern.
Should I delete log4j files
the vulnerability (the vulnerability was introduced starting in Log4j2), so there is no exploit risk. Removing these files can cause failures in Ant and issues with generating jar files used for custom/interception/transformation scripts. It is not recommended to remove these files.
Is 1.18 safe from Log4j
All servers running 1.18. 1 and above are completely safe. For those still running version 1.18 and older, part of the necessary fix is to add specific JVM arguments to your startup command line.
