CVE-2017-1000433

Name: CVE-2017-1000433
Creator: NVD / NIST
Published: 2018-01-02T23:29:00.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 2.52%

Last modified Jun 17, 2026

CVE-2017-1000433 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This allows attackers to log in as any user without knowing their password.. EPSS estimates a 2.52% chance of exploitation in the next 30 days.

Description

pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This allows attackers to log in as any user without knowing their password.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.52%

82.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Pysaml2 Project	Pysaml2	<= 4.4.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://github.com/rohe/pysaml2/issues/451Patch, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/07/msg00000.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00038.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201801-11Issue Tracking, Third Party Advisory
https://github.com/rohe/pysaml2/issues/451Patch, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/07/msg00000.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00038.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201801-11Issue Tracking, Third Party Advisory

Timeline

Published: Jan 2, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-1000433?

pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This allows attackers to log in as any user without knowing their password.

How severe is CVE-2017-1000433?

CVE-2017-1000433 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 2.52% probability of exploitation in the next 30 days.

How do I fix CVE-2017-1000433?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-1000433?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST