CVE-2019-10842: Malicious Package

April 4, 2019 (updated April 11, 2019)

An unauthenticated attacker can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval(), which can be leveraged to execute arbitrary code on the target system. Note that there are three underscore characters in the cookie name. This is unrelated to the __cfduid cookie that is legitimately used by Cloudflare.

References

github.com/twbs/bootstrap-sass/issues/1195
nvd.nist.gov/vuln/detail/CVE-2019-10842

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