OneLogin SAML SSO <= 3.1.2 - Open Redirection
Strategic Overview
- Status
- Patched in 3.2.0
- Affected Plugin
- OneLogin SAML SSO
- Affected Version
<= 3.1.2- CVSS
- 4.7Medium
- Weakness type
- CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
- CVE
CVE pending
At a glance
This record tracks a medium-severity URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the OneLogin SAML SSO WordPress plugin, affecting versions <= 3.1.2. It carries a CVSS score of 4.7 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.2.0; sites on affected versions should update now. Disclosed March 2021.
Vulnerability Overview
The OneLogin SAML SSO plugin for WordPress is vulnerable to open redirection in versions up to, and including, 3.1.2. This makes it possible for unauthorized attackers to redirect traffic to potentially malicious websites.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.
CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Reaching this weakness in OneLogin SAML SSO <= 3.1.2 takes a caller who can reach the endpoint. An open redirect is a page that takes a destination from the request and sends the browser there without checking that the destination belongs to the site.
A link that starts on a trusted domain finishes on an attacker's, which is what makes phishing and consent-screen abuse credible to the person clicking it. For OneLogin SAML SSO the fix is 3.2.0: builds <= 3.1.2 are affected, anything from 3.2.0 onward is not.
Remediation
Update to version 3.2.0, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to OneLogin SAML SSO: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: OneLogin SAML SSO 3.2.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
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