CVE-2020-5390

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.

Link	Resource
https://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0	Release Notes Third Party Advisory
https://github.com/IdentityPython/pysaml2/commit/f27c7e7a7010f83380566a219fd6a290a00f2b6e	Patch Third Party Advisory
https://pypi.org/project/pysaml2/5.0.0/	Product Third Party Advisory
https://github.com/IdentityPython/pysaml2/commit/5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25	Patch Third Party Advisory
https://github.com/IdentityPython/pysaml2/releases	Release Notes Third Party Advisory
https://usn.ubuntu.com/4245-1/	Third Party Advisory
https://www.debian.org/security/2020/dsa-4630	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/02/msg00025.html	Mailing List Third Party Advisory

Configuration 1

cpe:2.3:a:pysaml2_project:pysaml2:*:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

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Published : 2020-01-13 07:15

Updated : 2023-02-01 05:08

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NVD link : CVE-2020-5390

Mitre link : CVE-2020-5390

No products.

CWE-347

Improper Verification of Cryptographic Signature