CVE-2017-12173

Name: CVE-2017-12173
Creator: NVD / NIST
Published: 2018-07-27T16:29:00.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.50%

Last modified Jun 17, 2026

CVE-2017-12173 is a vulnerability of currently unknown severity. It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.. EPSS estimates a 1.50% chance of exploitation in the next 30 days.

Description

It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.

Metrics

EPSS Probability

1.50%

71.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Eus	7.4
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0
Fedoraproject	Sssd	< 1.16.0

References

https://access.redhat.com/errata/RHSA-2017:3379Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1877Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12173Issue Tracking, Patch, Vendor Advisory
https://access.redhat.com/errata/RHSA-2017:3379Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1877Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12173Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Jul 27, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12173?

How severe is CVE-2017-12173?

Severity scoring for CVE-2017-12173 is pending analysis. The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12173?

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-2017-12173?

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

Scan your code now

Source: NVD / NIST