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Fencer Vulns
medium 4.3

CVE-2017-12173 json

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…

published 2018-07-27 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-3749

cvss
4.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

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.

Patch / fix

  • fedoraproject sssd 1.16.0
  • sssd Debian 14, Debian 13, Debian 12 1.15.3-2

debian advisories DEBIAN-CVE-2017-12173

  • sssd Ubuntu 16.04 LTS 1.13.4-1ubuntu1.10

ubuntu advisories UBUNTU-CVE-2017-12173

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • sssd RHEL 6 1.13.3-60.el6
  • ding-libs RHEL 6 0.4.0-13.el6
  • sssd-ad RHEL 6 1.13.3-60.el6
  • libdhash RHEL 6 0.4.3-13.el6
  • sssd-ipa RHEL 6 1.13.3-60.el6
  • sssd-dbus RHEL 6 1.13.3-60.el6
  • sssd-krb5 RHEL 6 1.13.3-60.el6
  • sssd-ldap RHEL 6 1.13.3-60.el6

red hat advisories RHSA-2018:1877RHSA-2017:3379

  • sssd SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +6 more 1.13.4-34.7.1

suse advisories SUSE-SU-2017:2937-1

  • sssd openSUSE Tumbleweed 2.5.2-1.4

opensuse advisories openSUSE-SU-2024:11408-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-12173 updated cvss 4.3

sssd: unsanitized input when searching in local cache database

  • Red Hat Satellite 6 sssd
    affected: workaround, no fix available
  • Red Hat Enterprise Linux Client (v. 7) sssd 1.15.2-50.el7_4.8, sssd-ad 1.15.2-50.el7_4.8, sssd-ipa 1.15.2-50.el7_4.8, sssd-kcm 1.15.2-50.el7_4.8, sssd-dbus 1.15.2-50.el7_4.8, sssd-krb5 1.15.2-50.el7_4.8, +21 more Red Hat Enterprise Linux Client Optional (v. 7) python-libsss_nss_idmap 1.15.2-50.el7_4.8 Red Hat Enterprise Linux ComputeNode (v. 7) sssd 1.15.2-50.el7_4.8, sssd-ad 1.15.2-50.el7_4.8, sssd-ipa 1.15.2-50.el7_4.8, sssd-kcm 1.15.2-50.el7_4.8, sssd-dbus 1.15.2-50.el7_4.8, sssd-krb5 1.15.2-50.el7_4.8, +21 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-libsss_nss_idmap 1.15.2-50.el7_4.8
    fixed: vendor fix RHSA-2017:3379
  • Red Hat Enterprise Linux Desktop (v. 6) sssd 1.13.3-60.el6, libdhash 0.4.3-13.el6, sssd-ad 1.13.3-60.el6, ding-libs 0.4.0-13.el6, sssd-ipa 1.13.3-60.el6, sssd-dbus 1.13.3-60.el6, +17 more Red Hat Enterprise Linux Desktop Optional (v. 6) python-sss 1.13.3-60.el6, sssd-tools 1.13.3-60.el6, libsss_nss_idmap 1.13.3-60.el6, libsss_simpleifp 1.13.3-60.el6, python-libsss_nss_idmap 1.13.3-60.el6
    fixed: vendor fix RHSA-2018:1877
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) sssd 1.15.2-50.el7_4.8, sssd-ad 1.15.2-50.el7_4.8, sssd-ipa 1.15.2-50.el7_4.8, sssd-kcm 1.15.2-50.el7_4.8, sssd-dbus 1.15.2-50.el7_4.8, sssd-krb5 1.15.2-50.el7_4.8, +22 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) python-libsss_nss_idmap 1.15.2-50.el7_4.8
    fixed: vendor fix RHSA-2017:3379
  • Red Hat Enterprise Linux HPC Node (v. 6) sssd 1.13.3-60.el6, libdhash 0.4.3-13.el6, sssd-ad 1.13.3-60.el6, ding-libs 0.4.0-13.el6, sssd-ipa 1.13.3-60.el6, sssd-dbus 1.13.3-60.el6, +17 more Red Hat Enterprise Linux HPC Node Optional (v. 6) python-sss 1.13.3-60.el6, sssd-tools 1.13.3-60.el6, libsss_nss_idmap 1.13.3-60.el6, libsss_simpleifp 1.13.3-60.el6, python-libsss_nss_idmap 1.13.3-60.el6 Red Hat Enterprise Linux Server (v. 6) sssd 1.13.3-60.el6, libdhash 0.4.3-13.el6, sssd-ad 1.13.3-60.el6, ding-libs 0.4.0-13.el6, sssd-ipa 1.13.3-60.el6, sssd-dbus 1.13.3-60.el6, +18 more
    fixed: vendor fix RHSA-2018:1877
  • Red Hat Enterprise Linux Server (v. 7) sssd 1.15.2-50.el7_4.8, sssd-ad 1.15.2-50.el7_4.8, sssd-ipa 1.15.2-50.el7_4.8, sssd-kcm 1.15.2-50.el7_4.8, sssd-dbus 1.15.2-50.el7_4.8, sssd-krb5 1.15.2-50.el7_4.8, +22 more
    fixed: vendor fix RHSA-2017:3379
  • Red Hat Enterprise Linux Server Optional (v. 6) python-sss 1.13.3-60.el6, sssd-tools 1.13.3-60.el6, libsss_nss_idmap 1.13.3-60.el6, libsss_simpleifp 1.13.3-60.el6, python-libsss_nss_idmap 1.13.3-60.el6
    fixed: vendor fix RHSA-2018:1877
  • Red Hat Enterprise Linux Server Optional (v. 7) python-libsss_nss_idmap 1.15.2-50.el7_4.8
    fixed: vendor fix RHSA-2017:3379
show 5 more
  • Red Hat Enterprise Linux Workstation (v. 6) sssd 1.13.3-60.el6, libdhash 0.4.3-13.el6, sssd-ad 1.13.3-60.el6, ding-libs 0.4.0-13.el6, sssd-ipa 1.13.3-60.el6, sssd-dbus 1.13.3-60.el6, +18 more
    fixed: vendor fix RHSA-2018:1877
  • Red Hat Enterprise Linux Workstation (v. 7) sssd 1.15.2-50.el7_4.8, sssd-ad 1.15.2-50.el7_4.8, sssd-ipa 1.15.2-50.el7_4.8, sssd-kcm 1.15.2-50.el7_4.8, sssd-dbus 1.15.2-50.el7_4.8, sssd-krb5 1.15.2-50.el7_4.8, +22 more
    fixed: vendor fix RHSA-2017:3379
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-sss 1.13.3-60.el6, sssd-tools 1.13.3-60.el6, libsss_nss_idmap 1.13.3-60.el6, libsss_simpleifp 1.13.3-60.el6, python-libsss_nss_idmap 1.13.3-60.el6
    fixed: vendor fix RHSA-2018:1877
  • Red Hat Enterprise Linux Workstation Optional (v. 7) sssd-debuginfo 1.15.2-50.el7_4.8, libipa_hbac-devel 1.15.2-50.el7_4.8, libsss_idmap-devel 1.15.2-50.el7_4.8, libsss_certmap-devel 1.15.2-50.el7_4.8, libsss_nss_idmap-devel 1.15.2-50.el7_4.8, libsss_simpleifp-devel 1.15.2-50.el7_4.8, +1 more
    fixed: vendor fix RHSA-2017:3379
  • Red Hat Enterprise Linux 5 sssd
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.51% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

  • SSSD sssd

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.