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Vulnerability researcher here. This vulnerability was patch-gapped before it was disclosed. When the patch went out 9 days ago [1], many vulnerability research
by rot25 5y ago
Vulnerability researcher here. This vulnerability was patch-gapped before it was disclosed.
When the patch went out 9 days ago [1], many vulnerability researchers were able to look at it and identify the root cause within minutes. Exploits started going out over a week ago before it was publicly disclosed and the CVE was released. Good security orgs that can hire skilled vulnerability researchers started patching on December 6th/7th/8th. All the chaos started on December 9th when people started leaking the poc on twitter.
The same thing happens to google chrome when they release a patch for a security vulnerability. Very skilled researchers can produce a POC and exploit given the patch alone [2]
[1] https://github.com/apache/logging-log4j2/commit/d82b47c https://github.com/apache/logging-log4j2/commit/d82b47c
[2] https://blog.exodusintel.com/2019/09/09/patch-gapping-chrome/ https://blog.exodusintel.com/2019/09/09/patch-gapping-chrome...
- ridaj 5y agoThanks, that explains things. I guess I was confused by it being called here and there a "zero-day" - if it's the patch that triggered exploitation, then at least it was already fixed at head by the time it got exploited.
- deleted 5y ago[deleted]