CVE-2017-12173
Publication date 5 October 2017
Last updated 25 August 2025
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| sssd | ||
| 16.04 LTS xenial |
Fixed 1.13.4-1ubuntu1.10
|
|
| 14.04 LTS trusty | Not in release |
Notes
leosilva
according with RHEL "Versions prior to sssd-1.12.0 are not affected (affected commit: 7ecb5ae)"
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.8 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-3526-1
- SSSD vulnerability
- 10 January 2018