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8 vulnerabilities found for dex by linuxfoundation
CVE-2024-23656 (GCVE-0-2024-23656)
Vulnerability from cvelistv5 – Published: 2024-01-25 19:45 – Updated: 2025-06-03 18:20
VLAI
Title
Dex 2.37.0 is discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers
Summary
Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex 2.37.0 serves HTTPS with insecure TLS 1.0 and TLS 1.1. `cmd/dex/serve.go` line 425 seemingly sets TLS 1.2 as minimum version, but the whole `tlsConfig` is ignored after `TLS cert reloader` was introduced in v2.37.0. Configured cipher suites are not respected either. This issue is fixed in Dex 2.38.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/dexidp/dex/security/advisories… | x_refsource_CONFIRM |
| https://github.com/dexidp/dex/issues/2848 | x_refsource_MISC |
| https://github.com/dexidp/dex/pull/2964 | x_refsource_MISC |
| https://github.com/dexidp/dex/commit/5bbdb4420254… | x_refsource_MISC |
| https://github.com/dexidp/dex/blob/70d7a2c7c1bb26… | x_refsource_MISC |
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CVE-2022-39222 (GCVE-0-2022-39222)
Vulnerability from cvelistv5 – Published: 2022-10-06 00:00 – Updated: 2025-04-22 17:20
VLAI
Title
OAuth authorization code exposure in Dex
Summary
Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex instances with public clients (and by extension, clients accepting tokens issued by those Dex instances) are affected by this vulnerability if they are running a version prior to 2.35.0. An attacker can exploit this vulnerability by making a victim navigate to a malicious website and guiding them through the OIDC flow, stealing the OAuth authorization code in the process. The authorization code then can be exchanged by the attacker for a token, gaining access to applications accepting that token. Version 2.35.0 has introduced a fix for this issue. Users are advised to upgrade. There are no known workarounds for this issue.
Severity
9.3 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
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CVE-2020-27847 (GCVE-0-2020-27847)
Vulnerability from cvelistv5 – Published: 2021-05-28 10:20 – Updated: 2024-08-04 16:25
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
- CWE-228 - >CWE-290
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://mattermost.com/blog/coordinated-disclosur… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1907732 | x_refsource_MISC |
| https://github.com/dexidp/dex/security/advisories… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | dexidp/dex |
Affected:
dex 2.27.0
|
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CVE-2020-26290 (GCVE-0-2020-26290)
Vulnerability from cvelistv5 – Published: 2020-12-28 19:15 – Updated: 2024-08-04 15:56
VLAI
Title
Critical security issues in XML encoding in Dex
Summary
Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).
Severity
9.3 (Critical)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://mattermost.com/blog/coordinated-disclosur… | x_refsource_MISC |
| https://github.com/dexidp/dex/security/advisories… | x_refsource_CONFIRM |
| https://github.com/russellhaering/goxmldsig/secur… | x_refsource_MISC |
| https://github.com/dexidp/dex/commit/324b1c886b40… | x_refsource_MISC |
| https://github.com/dexidp/dex/releases/tag/v2.27.0 | x_refsource_MISC |
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CVE-2024-23656 (GCVE-0-2024-23656)
Vulnerability from nvd – Published: 2024-01-25 19:45 – Updated: 2025-06-03 18:20
VLAI
Title
Dex 2.37.0 is discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers
Summary
Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex 2.37.0 serves HTTPS with insecure TLS 1.0 and TLS 1.1. `cmd/dex/serve.go` line 425 seemingly sets TLS 1.2 as minimum version, but the whole `tlsConfig` is ignored after `TLS cert reloader` was introduced in v2.37.0. Configured cipher suites are not respected either. This issue is fixed in Dex 2.38.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/dexidp/dex/security/advisories… | x_refsource_CONFIRM |
| https://github.com/dexidp/dex/issues/2848 | x_refsource_MISC |
| https://github.com/dexidp/dex/pull/2964 | x_refsource_MISC |
| https://github.com/dexidp/dex/commit/5bbdb4420254… | x_refsource_MISC |
| https://github.com/dexidp/dex/blob/70d7a2c7c1bb26… | x_refsource_MISC |
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CVE-2022-39222 (GCVE-0-2022-39222)
Vulnerability from nvd – Published: 2022-10-06 00:00 – Updated: 2025-04-22 17:20
VLAI
Title
OAuth authorization code exposure in Dex
Summary
Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex instances with public clients (and by extension, clients accepting tokens issued by those Dex instances) are affected by this vulnerability if they are running a version prior to 2.35.0. An attacker can exploit this vulnerability by making a victim navigate to a malicious website and guiding them through the OIDC flow, stealing the OAuth authorization code in the process. The authorization code then can be exchanged by the attacker for a token, gaining access to applications accepting that token. Version 2.35.0 has introduced a fix for this issue. Users are advised to upgrade. There are no known workarounds for this issue.
Severity
9.3 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
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CVE-2020-27847 (GCVE-0-2020-27847)
Vulnerability from nvd – Published: 2021-05-28 10:20 – Updated: 2024-08-04 16:25
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
- CWE-228 - >CWE-290
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://mattermost.com/blog/coordinated-disclosur… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1907732 | x_refsource_MISC |
| https://github.com/dexidp/dex/security/advisories… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | dexidp/dex |
Affected:
dex 2.27.0
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CVE-2020-26290 (GCVE-0-2020-26290)
Vulnerability from nvd – Published: 2020-12-28 19:15 – Updated: 2024-08-04 15:56
VLAI
Title
Critical security issues in XML encoding in Dex
Summary
Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).
Severity
9.3 (Critical)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://mattermost.com/blog/coordinated-disclosur… | x_refsource_MISC |
| https://github.com/dexidp/dex/security/advisories… | x_refsource_CONFIRM |
| https://github.com/russellhaering/goxmldsig/secur… | x_refsource_MISC |
| https://github.com/dexidp/dex/commit/324b1c886b40… | x_refsource_MISC |
| https://github.com/dexidp/dex/releases/tag/v2.27.0 | x_refsource_MISC |
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