Improper Input Validation Affecting libsss_nss_idmap package, versions <0:1.15.2-50.el7_4.8
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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Start learning- Snyk IDSNYK-RHEL7-LIBSSSNSSIDMAP-4777432
- published26 Jul 2021
- disclosed3 Oct 2017
Introduced: 3 Oct 2017
CVE-2017-12173 (opens in a new tab)How to fix?
Upgrade RHEL:7 libsss_nss_idmap to version 0:1.15.2-50.el7_4.8 or higher.
This issue was patched in RHSA-2017:3379.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libsss_nss_idmap package and not the libsss_nss_idmap package as distributed by RHEL.
See How to fix? for RHEL:7 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.