OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
Published 2019-04-17 14:29:00
Updated 2019-10-09 23:22:06
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Exploit prediction scoring system (EPSS) score for CVE-2017-11427

1.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-11427

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST
7.7
HIGH CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
3.1
4.0
Duo Security, Inc.

CWE ids for CVE-2017-11427

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by:
    • nvd@nist.gov (Primary)
    • security@duo.com (Secondary)

References for CVE-2017-11427

Products affected by CVE-2017-11427

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