Improper Input Validation Affecting sssd package, versions <1.15.3-2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 Aug 2026
- disclosed27 Jul 2018
Introduced: 27 Jul 2018
CVE-2017-12173 (opens in a new tab)How to fix?
Upgrade Echo:latest sssd to version 1.15.3-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream sssd package and not the sssd package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.