CVE-2020-5390
7.5 · HIGHOverview
CVE-2020-5390 is a high-severity vulnerability affecting pysaml2_project pysaml2. It was published on January 13, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.
Remediation
Check the references section for vendor advisories and patches from pysaml2_project. Update pysaml2 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| pysaml2_project | pysaml2 | >= 0, < 5.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-5390?
CVE-2020-5390 is a high-severity vulnerability affecting pysaml2_project pysaml2. It was published on January 13, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-5390?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-5390?
Check the references section for vendor advisories and patches from pysaml2_project. Update pysaml2 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-5390?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-5390 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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