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Security Advisory - GraphQL Parser Overloading

High
42atomys published GHSA-3hwm-922r-47hw Mar 28, 2023

Package

gomod atomys.codes/stud42 (Go)

Affected versions

<=v0.22.2

Patched versions

v0.23

Description

A security vulnerability has been identified in the GraphQL parser used by the API of s42.app. An attacker can overload the parser and cause the API pod to crash. With a bit of threading, the attacker can bring down the entire API, resulting in an unhealthy stream. This vulnerability can be exploited by sending a specially crafted request to the API with a large payload.

An attacker can exploit this vulnerability to cause a denial of service (DoS) attack on the s42.app API, resulting in unavailability of the API for legitimate users.

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE ID

No known CVE

Weaknesses

No CWEs

Credits