High severity · published Jul 27, 2018
CVE-2017-12173
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
8.8
CVSS
1.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.4 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.4; 7.5 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
SS
Sssd · Fedoraproject
before 1.16.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12173
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-12173
Vendor Advisory
https://access.redhat.com/errata/RHSA-2017:3379
Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1877
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12173
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