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GHSA-wm63-7627-ch33
No affected components available
Impact
Currently, in many Vendure deployments it's possible to select any currencyCode (really any, doesn't need to be assigned to the channel) and pay through Mollie and Stripe in that particular currencyCode. The prices are not transformed. The result is the Order is in Payment Settled in the foreign currency. See SS, CZK is not in the channel. I've tested with Mollie and Stripe it both works.
Further notes
After looking into this further and with help from the comments below, the root cause of this vulnerability is the ability to specify an arbitrary currencyCode as a query parameter to an API call, and then Vendure will use this and pass it to the rest of the system as RequestContext.currencyCode.
The solution is to add validation to the passed currencyCode to ensure that it matches one of the available availableCurrencyCodes of the active Channel.
Furthermore, an additional check has been added for when the currencyCode changes during the AddingItems stage - in this case we need to re-calculate the prices in the new currency.
Patches
v2.1.3
Workarounds
You can define a custom OrderProcess onTransitionStart function which can verify the order's currencyCode is as expected before allowing the transition to the ArrangingPayment state.
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 impact is confined to the system where the vulnerability exists. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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