CVE-2020-27847

A vulnerability exists in the SAML connector of the github.com/dexidp/dex library used to process SAML Signature Validation. This flaw allows an attacker to bypass SAML authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. This flaw affects dex versions before 2.27.0.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1907732	Issue Tracking Third Party Advisory
https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5	Patch Third Party Advisory
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/	Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:dex:*:*:*:*:*:*:*:*

Information

Published : 2021-05-28 04:15

Updated : 2021-06-02 09:32

NVD link : CVE-2020-27847

Mitre link : CVE-2020-27847

JSON object : View

CWE

CWE-290

Authentication Bypass by Spoofing

CWE-228

Improper Handling of Syntactically Invalid Structure

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Products Affected

linuxfoundation

dex

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