Improper access control in System Security Services Daemon (SSSD) - CVE-2019-3811
Published: January 22, 2019
Vulnerability identifier: #VU17121
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-3811
CWE-ID: CWE-284
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: SSSD
Affected software:
System Security Services Daemon (SSSD)
System Security Services Daemon (SSSD)
Detailed vulnerability description
The vulnerability allows an adjacent authenticated attacker to bypass security restrictions.
The vulnerability exists due to the return of '/' (the root directory) instead of '' (the empty string / no home directory) if a user was configured with no home directory set. An adjacent attacker can bypass services that restrict the user's filesystem access to within their home directory through chroot().
How to mitigate CVE-2019-3811
Update to version 2.1.