log4j-log4shell-affected
log4shell-tools
| log4j-log4shell-affected | log4shell-tools | |
|---|---|---|
| 3 | 8 | |
| 53 | 84 | |
| - | - | |
| 0.0 | 4.8 | |
| over 2 years ago | about 1 month ago | |
| Go | ||
| - | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
log4j-log4shell-affected
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Known applications that use Spring Framework
When Log4J hit, someone had the forethought to publish a list of affected applications on GITHUB.
- Given the recent Log4J exploit, what widely used linux apps should we be careful with until they are patched?
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US warns hundreds of millions of devices at risk from newly revealed software vulnerability
That being said, I've been keeping an eye out on this Github tracker that consolidates responses from vendors so at least we can see their statements: https://github.com/authomize/log4j-log4shell-affected
log4shell-tools
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Log4j: The Pain Just Keeps Going and Going
I'm seeing this as well. While the amount of traffic has certainly decreased compared to the first couple of days after the CVE was announced, https://log4shell.tools is still being used by people every day.
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How to send similar payload to different http headers?
e.g. from log4j. Taken from https://log4shell.tools/
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Received a visit from the infamous Dejmnok420 today. Can anyone ELI5 the steps to take now?
I run tests with https://log4shell.tools, and it seems I'm vulnerable on client side, but my server is safe, which makes sense as I compiled the .jar 2 weeks ago with BuildTools as indicated here https://www.spigotmc.org/threads/spigot-security-releases-%E2%80%94-1-8-8%E2%80%931-18.537204/
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Log4Shell Vulnerability Test Tool
You're right, but this has always been the trade off with tools like this. You put some trust in the tool's authors and gain some insight in return. Remember the services that tested for Heartbleed (e.g. https://filippo.io/Heartbleed/)? Fairly similar trade-off, but still these tools were widely used.
If you really don't trust me and have some technical know-how, you can self host the service. It's open source: https://github.com/alexbakker/log4shell-tools.
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Log4j 2.15.0 – Previously suggested mitigations may not be enough
I can't say I'm feeling the same. Still lots of people testing over at https://log4shell.tools almost a week after this vulnerability became widely known. Plenty of people still discovering they're vulnerable as well. I think it's likely that these are just the people who know they're using log4j. If you're running a black box product from a vendor you'll have no clue you're vulnerable until it's too late.
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Analysis of the 2nd Log4j CVE published earlier (CVE-2021-45046 / Log4Shell2)
I have a feeling this vulnerability is going to be with us for years. Shameless plug: I built a tool that assists in detecting whether you're vulnerable to this or the previous CVE: https://log4shell.tools. Just enter the JNDI URI it gives you anywhere you suspect it ends up causing a message lookup in log4j. If log4j does so much as a DNS lookup, this tool will tell you about it.
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log4shell.tools - Check if you're vulnerable to an egregious case of log4shell
Done! https://github.com/alexbakker/log4shell-tools
What are some alternatives?
CVE-2021-44228-PoC-log4j-bypass-words - 🐱💻 ✂️ 🤬 CVE-2021-44228 - LOG4J Java exploit - WAF bypass tricks
ysoserial - A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.
spring4shell - Operational information regarding the Spring4Shell vulnerability in the Spring Core Framework
lunasec - LunaSec - Dependency Security Scanner that automatically notifies you about vulnerabilities like Log4Shell or node-ipc in your Pull Requests and Builds. Protect yourself in 30 seconds with the LunaTrace GitHub App: https://github.com/marketplace/lunatrace-by-lunasec/
log4j-affected-db - A community sourced list of log4j-affected software
log4j2-without-jndi - log4j2-core JAR w/o JndiLookup.class
aegis4j - A Java agent that disables platform features you don't use, before an attacker uses them against you.
log4jshell-pdf - The purpose of this project is to demonstrate the Log4Shell exploit with Log4J vulnerabilities using PDF as delivery channel
Logout4Shell - Use Log4Shell vulnerability to vaccinate a victim server against Log4Shell
Apache Log4j 2 - Apache Log4j 2 is a versatile, feature-rich, efficient logging API and backend for Java.
logstash-patterns-core
public-pentesting-reports - A list of public penetration test reports published by several consulting firms and academic security groups.