SUSE SLES11 Security Update : openldap2 (SUSE-SU-2020:14353-1)

high Nessus Plugin ID 150644

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14353-1 advisory.

- An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi- tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.) (CVE-2019-13057)

- 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. (CVE-2019-13565)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected libldap-openssl1-2_4-2, libldap-openssl1-2_4-2-32bit, openldap2-client-openssl1 and / or openldap2-openssl1 packages.

Plugin Details

Severity: High

ID: 150644

File Name: suse_SU-2020-14353-1.nasl

Version: 1.2

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/10/2021

Updated: 6/10/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2019-13565

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libldap-openssl1-2_4-2, p-cpe:/a:novell:suse_linux:libldap-openssl1-2_4-2-32bit, p-cpe:/a:novell:suse_linux:libldap-openssl1-2_4-2-x86, p-cpe:/a:novell:suse_linux:openldap2-client-openssl1, p-cpe:/a:novell:suse_linux:openldap2-openssl1, cpe:/o:novell:suse_linux:11

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/29/2020

Vulnerability Publication Date: 7/26/2019

Reference Information

CVE: CVE-2019-13057, CVE-2019-13565

SuSE: SUSE-SU-2020:14353-1

Detections

Analytics