GMS-2023-1836: Tokenizer vulnerable to client brute-force of token secrets

July 13, 2023

Impact

Authorized clients, having an inject_processor secret, could brute-force the secret token value by abusing the fmt parameter to the Proxy-Tokenizer header.

Patches

This was fixed in https://github.com/superfly/tokenizer/pull/8 and further mitigated in https://github.com/superfly/tokenizer/pull/9.

References

github.com/advisories/GHSA-f28g-86hc-823q
github.com/superfly/tokenizer/pull/8
github.com/superfly/tokenizer/pull/9
github.com/superfly/tokenizer/security/advisories/GHSA-f28g-86hc-823q

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