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GHSA-mwhf-vhr5-7j23
No affected components available
Impact
Incorrect Access Control, anyone using the post or verifyRequestSignature methods to handle messages is impacted.
Patches
Patched in version 4.0.3.
Workarounds
It's possible to check the payload validation using the WhatsAppAPI.verifyRequestSignature and expect false when the signature is valid.
function doPost(payload, header_signature) {
if (whatsapp.verifyRequestSignature(payload.toString(), header_signature) {
throw 403;
}
// Now the payload is correctly verified
whatsapp.post(payload);
}
References
https://github.com/Secreto31126/whatsapp-api-js/pull/371
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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