CVE-2020-7692

Published: 9 July 2020

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized. An attacker is able to obtain the authorization code using a malicious app on the client-side and use it to gain authorization to the protected resource. This affects the package com.google.oauth-client:google-oauth-client before 1.31.0.

Priority

Cvss 3 Severity Score

9.1

Score breakdown

Status

Package	Release	Status
google-oauth-client-java Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	impish	Ignored (end of life)
	jammy	Needs triage
	kinetic	Ignored (end of life, was needs-triage)
	lunar	Ignored (end of life, was needs-triage)
	mantic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist

Severity score breakdown

Parameter	Value
Base score	9.1
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

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