Description
An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.
Published: 2019-07-26
Score: 7.5 High
EPSS: 3.1% Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1891-1 openldap security update
EUVD EUVD EUVD-2019-5020 An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.
Ubuntu USN Ubuntu USN USN-4078-1 OpenLDAP vulnerabilities
Ubuntu USN Ubuntu USN USN-4078-2 OpenLDAP vulnerabilities
History

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Subscriptions

Apple Mac Os X
Canonical Ubuntu Linux
Debian Debian Linux
F5 Traffix Signaling Delivery Controller
Openldap Openldap
Opensuse Leap
Oracle Blockchain Platform Solaris Zfs Storage Appliance Kit
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T23:57:39.435Z

Reserved: 2019-07-11T00:00:00.000Z

Link: CVE-2019-13565

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-07-26T13:15:12.720

Modified: 2024-11-21T04:25:11.190

Link: CVE-2019-13565

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-07-24T00:00:00Z

Links: CVE-2019-13565 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses