This tweet highlights a WAF evasion technique targeting Cloudflare and ModSecurity using an uninitialized Bash variable to bypass regular expression-based filters and pattern matching. For more details, check out the blogpost by the @secjuice team. #CyberSecurity #WAFBypass
For more insights, check out the original tweet here: https://twitter.com/grumpzsux/status/1784794808315236637