Hasura GraphQL 1.3.3 Query Endpoint pg_read_file sql injection

Summaryinfo

A vulnerability marked as critical has been reported in Hasura GraphQL 1.3.3. Affected by this issue is the function pg_read_file of the component Query Endpoint. This manipulation causes sql injection. The identification of this vulnerability is CVE-2021-47714. The attack can only be executed locally. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as critical was found in Hasura GraphQL 1.3.3. Affected by this vulnerability is the function pg_read_file of the component Query Endpoint. The manipulation with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Hasura GraphQL 1.3.3 contains a local file read vulnerability that allows attackers to access system files through SQL injection in the query endpoint. Attackers can exploit the pg_read_file() PostgreSQL function by crafting malicious SQL queries to read arbitrary files on the server.

The weakness was shared by Dolev Farhi as 49790. The advisory is shared at exploit-db.com. This vulnerability is known as CVE-2021-47714 since 12/05/2025. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1505 for this issue.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (49790) and EUVD (EUVD-2021-34745). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Hasura

Name

• GraphQL

Version

• 1.3.3

CPE 2.3info

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CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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