Improper Authorization in OpenLDAP - CVE-2019-13565
Published: July 30, 2019
Vulnerability identifier: #VU19562
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-13565
CWE-ID: CWE-285
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: OpenLDAP.org
Affected software:
OpenLDAP
OpenLDAP
Detailed vulnerability description
The vulnerability allows a remote attacker to escalate privileges.
The vulnerability exists due to incorrect processing of SASL authentication and session encryption in OpenLDAP. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections, allowing to bypass ACLs and obtain access by performing simple binds.
How to mitigate CVE-2019-13565
Install updates from vendor's website.