CVE-2023-37471 json
User impersonation using SAMLv1.x SSO in Open Access Management
published 2023-07-20 3 y ago modified 2026-09-10 1 mo ago also GHSA-4mh8-9wq6-rjxg , EUVD-2023-1953
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security. OpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet. This problem has been patched in OpenAM 14.7.3-SNAPSHOT and later. User unable to upgrade should comment servlet `SAMLPOSTProfileServlet` from their pom file. See the linked GHSA for details.
Patch / fix
- maven org.openidentityplatform.openam:openam-federation-library 14.7.3
- openidentityplatform openam 14.7.3
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
1.26% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.openidentityplatform.openam:openam-federation-library | <14.7.3 |
14.7.3 |
Affected products
- OpenIdentityPlatform OpenAM
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/OpenIdentityPlatform/OpenAM/pull/624
web, patch
-
github.com
/OpenIdentityPlatform/OpenAM/commit/7c18543d126e8a567b83bb4535631825aaa9d742
web, patch
-
github.com
/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-4mh8-9wq6-rjxg
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-37471
advisory
-
github.com
/OpenIdentityPlatform/OpenAM
package
Sources
- CVE List CVE-2023-37471
- GitHub Advisory GHSA-4mh8-9wq6-rjxg
- NVD CVE-2023-37471
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