CVE-2019-13565

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

26/07/2019

Last modified:

07/11/2023

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:openldap:openldap::::::::	2.0 (including)	2.4.47 (including)
cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:18.04:::::::*
cpe:2.3:o:canonical:ubuntu_linux:19.04:::::::*
cpe:2.3:o:debian:debian_linux:8.0:::::::*
cpe:2.3:o:opensuse:leap:15.0:::::::*
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.0.0:::::::*
cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.1.0:::::::*
cpe:2.3:o:apple:mac_os_x::::::::	10.13 (including)	10.13.6 (excluding)
cpe:2.3:o:apple:mac_os_x::::::::	10.14 (including)	10.14.6 (excluding)
cpe:2.3:o:apple:mac_os_x::::::::	10.15 (including)	10.15.2 (excluding)
cpe:2.3:o:apple:mac_os_x:10.13.6:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:openldap:openldap::::::::	2.0 (including)	2.4.47 (including)
cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:18.04:::::::*
cpe:2.3:o:canonical:ubuntu_linux:19.04:::::::*
cpe:2.3:o:debian:debian_linux:8.0:::::::*
cpe:2.3:o:opensuse:leap:15.0:::::::*
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.0.0:::::::*
cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.1.0:::::::*
cpe:2.3:o:apple:mac_os_x::::::::	10.13 (including)	10.13.6 (excluding)
cpe:2.3:o:apple:mac_os_x::::::::	10.14 (including)	10.14.6 (excluding)
cpe:2.3:o:apple:mac_os_x::::::::	10.15 (including)	10.15.2 (excluding)
cpe:2.3:o:apple:mac_os_x:10.13.6:::::::*

CVE-2019-13565

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools