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CVE-2020-15222— Replay of private_key_jwt possible in ORY Fosite

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.

ORY Fosite是ORY公司的一款GO语言编写的OAUTH、OPENID连接框架。 ORY Fosite 0.31.0之前版本存在数据伪造问题漏洞，该漏洞源于没有检查jti值的唯一性。

CVSS 8.1 · High EPSS 0.87% · P57
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I. Basic Information for CVE-2020-15222

Vulnerability Information
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Vulnerability Title
Replay of private_key_jwt possible in ORY Fosite
Source: CVE Program / CVE List V5
Vulnerability Description
In ORY Fosite (the security first OAuth2 & OpenID Connect framework for Go) before version 0.31.0, when using "private_key_jwt" authentication the uniqueness of the `jti` value is not checked. When using client authentication method "private_key_jwt", OpenId specification says the following about assertion `jti`: "A unique identifier for the token, which can be used to prevent reuse of the token. These tokens MUST only be used once, unless conditions for reuse were negotiated between the parties". Hydra does not seem to check the uniqueness of this `jti` value. This problem is fixed in version 0.31.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ORY Fosite 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ORY Fosite是ORY公司的一款GO语言编写的OAUTH、OPENID连接框架。 ORY Fosite 0.31.0之前版本存在数据伪造问题漏洞，该漏洞源于没有检查jti值的唯一性。
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 < 0.31.0 -

II. Public POCs for CVE-2020-15222

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III. Intelligence Information for CVE-2020-15222

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Patches & Fixes for CVE-2020-15222 (1)

Vendor Advisories for CVE-2020-15222 (1)

IV. Related Vulnerabilities

Same product: fosite
Same vendor: ory
Same weakness: CWE-287

V. Comments for CVE-2020-15222

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