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CVE-2020-15233— OAuth2 Redirect URL validity does not respect query parameters and character casing for loopback addresses

Quick assessment

Affected
ory fosite
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

apt是Debian计划合作组织的一个命令行软件包管理器，它提供搜索、管理和查询软件包信息功能。ory ORY Fosite是ory公司的一款GO语言编写的OAUTH、OPENID连接框架。 ORY Fosite 0.34.1版本之前版本，0.30.2版本及之前版本存在安全漏洞，攻击者可利用该漏洞可以提供自定义URL查询参数回路重定向URL,以及实际注册重定向URL重写的主持人。

CVSS 6.1 · Medium EPSS 0.80% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-15233

Vulnerability Information
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Vulnerability Title
OAuth2 Redirect URL validity does not respect query parameters and character casing for loopback addresses
Source: CVE Program / CVE List V5
Vulnerability Description
ORY Fosite is a security first OAuth2 & OpenID Connect framework for Go. In Fosite from version 0.30.2 and before version 0.34.1, there is an issue in which an an attacker can override the registered redirect URL by performing an OAuth flow and requesting a redirect URL that is to the loopback adapter. Attackers can provide both custom URL query parameters to their loopback redirect URL, as well as actually overriding the host of the registered redirect URL. These attacks are only applicable in scenarios where the attacker has access over the loopback interface. This vulnerability has been patched in ORY Fosite v0.34.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
apt和ory ORY Fosite 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
apt是Debian计划合作组织的一个命令行软件包管理器，它提供搜索、管理和查询软件包信息功能。ory ORY Fosite是ory公司的一款GO语言编写的OAUTH、OPENID连接框架。 ORY Fosite 0.34.1版本之前版本，0.30.2版本及之前版本存在安全漏洞，攻击者可利用该漏洞可以提供自定义URL查询参数回路重定向URL,以及实际注册重定向URL重写的主持人。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ory fosite < 0.34.1 -

II. Public POCs for CVE-2020-15233

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III. Intelligence Information for CVE-2020-15233

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Patches & Fixes for CVE-2020-15233 (1)

Vendor Advisories for CVE-2020-15233 (1)

IV. Related Vulnerabilities

Same product: fosite
Same vendor: ory
Same weakness: CWE-20

V. Comments for CVE-2020-15233

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