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CVE-2021-23365— Authentication Bypass

Quick assessment

Affected
n/a github.com/TykTechnologies/tyk-identity-broker
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.

tyk-identity-broker是一个应用软件。提供了一个服务级别组件，该组件使授权的身份能够得到授权，并提供对各种由Tyk支持的组件（如Tyk仪表板，Tyk Developer Portal和Tyk Gateway API流（例如OAuth访问令牌））的身份验证访问。 tyk-identity-broker 1.1.1版本及之前版本存在安全漏洞，该漏洞源于Go XML解析器进行身份验证绕过。

CVSS 4.8 · Medium EPSS 1.01% · P62

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-23365

Vulnerability Information
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Vulnerability Title
Authentication Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
The package github.com/tyktechnologies/tyk-identity-broker before 1.1.1 are vulnerable to Authentication Bypass via the Go XML parser which can cause SAML authentication bypass. This is because the XML parser doesn’t guarantee integrity in the XML round-trip (encoding/decoding XML data).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
tyk-identity-broker 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
tyk-identity-broker是一个应用软件。提供了一个服务级别组件，该组件使授权的身份能够得到授权，并提供对各种由Tyk支持的组件（如Tyk仪表板，Tyk Developer Portal和Tyk Gateway API流（例如OAuth访问令牌））的身份验证访问。 tyk-identity-broker 1.1.1版本及之前版本存在安全漏洞，该漏洞源于Go XML解析器进行身份验证绕过。
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
- github.com/TykTechnologies/tyk-identity-broker unspecified ~ 1.1.1 -

II. Public POCs for CVE-2021-23365

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III. Intelligence Information for CVE-2021-23365

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Patches & Fixes for CVE-2021-23365 (3)

Vendor Advisories for CVE-2021-23365 (1)

Other References for CVE-2021-23365 (1)

Same Patch Batch · n/a · 2021-04-26 · 20 CVEs total

CVE-2021-23382 5.3 MEDIUM Regular Expression Denial of Service (ReDoS)
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CVE-2021-25927 safe-flat 安全漏洞
CVE-2021-25928 safe-obj 安全漏洞
CVE-2021-26797 Hame SD1 Wi-Fi 安全漏洞
CVE-2021-28079 jamovi 跨站脚本漏洞
CVE-2021-31802 NETGEAR R7000 缓冲区错误漏洞
CVE-2020-15078 OpenVPN 访问控制错误漏洞
CVE-2021-25838 MintHCM 跨站脚本漏洞
CVE-2021-22669 Advantech WebAccess SCADA 安全漏洞
CVE-2021-28399 Orangehrm 安全漏洞
CVE-2021-3494 Foreman 安全漏洞
CVE-2021-3472 X.Org X Server 数字错误漏洞
CVE-2020-36325 jansson 缓冲区错误漏洞
CVE-2021-31784 Open Design Alliance Drawings SDK 缓冲区错误漏洞
CVE-2021-31783 LocalFilesEditor 数据伪造问题漏洞
CVE-2021-31646 Gestsup 安全漏洞

IV. Related Vulnerabilities

Same vendor: n/a

V. Comments for CVE-2021-23365

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