VDB
CVE-2020-5390
CVE-2020-5390
PUBLISHED
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.
EPSS 0.76% · 73.7th percentile
Risk Scores
EPSS Score
0.76%
73.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | python-pysaml2 | 3.0.0-3ubuntu1.16.04.3, 0, 2.4.0-0ubuntu2 |
| Ubuntu:18.04:LTS | python-pysaml2 | 3.0.0-3ubuntu2, 4.0.2-0ubuntu2, 4.0.2-0ubuntu3 |
Timeline
- Jan 13, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 22, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 25, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 27, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-5390 third-party-advisory
- https://github.com/IdentityPython/pysaml2/commit/5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25 third-party-advisory
- https://github.com/IdentityPython/pysaml2/commit/f27c7e7a7010f83380566a219fd6a290a00f2b6e third-party-advisory
- https://github.com/IdentityPython/pysaml2/releases third-party-advisory
- https://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0 third-party-advisory
- https://pypi.org/project/pysaml2/5.0.0/ third-party-advisory
- https://ubuntu.com/security/notices/USN-4245-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-5390 third-party-advisory