CVE-2017-12872

Name: CVE-2017-12872
Creator: NVD / NIST
Published: 2017-09-01T21:29:00.563+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.45%

Last modified Jun 17, 2026

CVE-2017-12872 is a vulnerability of currently unknown severity. The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against user input.. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

Description

The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against user input.

Metrics

EPSS Probability

1.45%

69.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Simplesamlphp	Simplesamlphp	<= 1.14.11
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0

References

https://lists.debian.org/debian-lts-announce/2017/12/msg00007.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00017.htmlMailing List, Third Party Advisory
https://simplesamlphp.org/security/201703-01Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00007.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00017.htmlMailing List, Third Party Advisory
https://simplesamlphp.org/security/201703-01Patch, Vendor Advisory

Timeline

Published: Sep 1, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12872?

How severe is CVE-2017-12872?

Severity scoring for CVE-2017-12872 is pending analysis. The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12872?

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-2017-12872?

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

Scan your code now

Source: NVD / NIST