Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2021-21239 | First vendor Publication | 2021-01-21 |
Vendor | Cve | Last vendor Modification | 2021-03-10 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N | |||
---|---|---|---|
Overall CVSS Score | 6.5 | ||
Base Score | 6.5 | Environmental Score | 6.5 |
impact SubScore | 3.6 | Temporal Score | 6.5 |
Exploitabality Sub Score | 2.8 | ||
Attack Vector | Network | Attack Complexity | Low |
Privileges Required | None | User Interaction | Required |
Scope | Unchanged | Confidentiality Impact | None |
Integrity Impact | High | Availability Impact | None |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:N) | |||
---|---|---|---|
Cvss Base Score | 4.3 | Attack Range | Network |
Cvss Impact Score | 2.9 | Attack Complexity | Medium |
Cvss Expoit Score | 8.6 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. Users of pysaml2 that use the default CryptoBackendXmlSec1 backend and need to verify signed SAML documents are impacted. PySAML2 does not ensure that a signed SAML document is correctly signed. The default CryptoBackendXmlSec1 backend is using the xmlsec1 binary to verify the signature of signed SAML documents, but by default xmlsec1 accepts any type of key found within the given document. xmlsec1 needs to be configured explicitly to only use only _x509 certificates_ for the verification process of the SAML document signature. This is fixed in PySAML2 6.5.0. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21239 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-347 | Improper Verification of Cryptographic Signature |
CPE : Common Platform Enumeration
Type | Description | Count |
---|---|---|
Application | 2 | |
Os | 1 |
Sources (Detail)
Alert History
Date | Informations |
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2021-05-04 14:08:10 |
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2021-04-22 03:12:41 |
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2021-03-26 12:37:59 |
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2021-01-29 21:23:37 |
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2021-01-26 21:23:50 |
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2021-01-21 21:23:33 |
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