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CVE-2021-27290

Description

ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a regular expression which is vulnerable to a denial of service. Malicious SRIs could take an extremely long time to process, leading to denial of service. This issue only affects consumers using the strict option.

POC

Reference

- https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdf

- https://www.oracle.com/security-alerts/cpuoct2021.html

Github

- https://github.com/doyensec/regexploit

- https://github.com/engn33r/awesome-redos-security

- https://github.com/retr0-13/regexploit

- https://github.com/yetingli/PoCs