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GHSA-495j-h493-42q2
No affected components available
Summary
It's possible to access any private fields by filtering through the lookup parameters
Details
Using the new lookup operator provided by the document service in Strapi 5, it is not properly sanitizing this query operator for private fields.
PoC
- Create a strapi app.
- Create a content-type
- In the content-type you make a new entry
- Go back to the list view
- Add
&lookup[updatedBy][password][$startsWith]=$2to the end of your url (All passwords start with $2) see that all entries are still there - Add
&lookup[updatedBy][password][$startsWith]=$3see the entry disappear proving that the search above works
Impact
An attacker can perform filtering attacks on everything related to the object, including admin passwords and reset-tokens. This means that they can gain full access to the strapi instance.
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 high impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very 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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