The Log4j Incident Demonstrated Again That Publicly Disclosing 0-day Vulnerabilities Only Aids Intruders

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On December 9, 2021, a (now-deleted) tweet pointing to a 0-day proof of concept (PoC) exploit for the Log4Shell vulnerability on GitHub set the internet ablaze, sending businesses rushing to mitigate, patch, and patch again as other PoCs surfaced. 

Public vulnerability disclosure – that is, revealing to the world the existence of a bug in a piece of software, a library, an extension, or another piece of software, and releasing a proof-of-concept (PoC) that exploits it – occurs frequently for vulnerabilities in a wide range of software, from the most esoteric to the most mundane (and widely used). 

Threat actors are the only ones who benefit from the public disclosure of 0-day PoCs, as per research and experience, because it puts enterprises in the awkward position of needing to remediate the issue without having anything solid to mitigate it with (i.e., a vendor’s patch). 

There are several different types of responsible vulnerability disclosure systems available today. Some companies have an official vulnerability disclosure programme while others arrange and operate it through crowdsourced platforms. Companies typically offer money for information concerning flaws in their products (also known as “bug bounties”).