CVE-2023-37471
OpenAM vulnerable to user impersonation using SAMLv1.x SSO process
Description
### Impact 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. ### Patches This problem has been patched in OpenAM 14.7.3-SNAPSHOT and later ### Workarounds One should comment servlet `SAMLPOSTProfileServlet` in web.xml or disable SAML in OpenAM ```xml <servlet> <description>SAMLPOSTProfileServlet</description> <servlet-name>SAMLPOSTProfileServlet</servlet-name> <servlet-class>com.sun.identity.saml.servlet.SAMLPOSTProfileServlet</servlet-class> </servlet> ... <servlet-mapping> <servlet-name>SAMLSOAPReceiver</servlet-name> <url-pattern>/SAMLSOAPReceiver</url-pattern> </servlet-mapping> ``` ### References #624
How to fix CVE-2023-37471
To remediate CVE-2023-37471, upgrade the affected package to a fixed version below.
- —upgrade to 14.7.3 or later
Is CVE-2023-37471 being exploited?
Low — EPSS is 1.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 14.7.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |