CVE-2020-8023 | Local privilege escalation from ldap to root when using OPENLDAP_CONFIG_BACKEND=ldap in openldap2

Exp

A acceptance of Extraneous Untrusted Data With Trusted Data vulnerability in the start script of openldap2 of SUSE Enterprise Storage 5, SUSE Linux Enterprise Debuginfo 11-SP3, SUSE Linux Enterprise Debuginfo 11-SP4, SUSE Linux Enterprise Point of Sale 11-SP3, SUSE Linux Enterprise Server 11-SECURITY, SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Linux Enterprise Server 12-SP2-BCL, SUSE Linux Enterprise Server 12-SP2-LTSS, SUSE Linux Enterprise Server 12-SP3-BCL, SUSE Linux Enterprise Server 12-SP3-LTSS, SUSE Linux Enterprise Server 12-SP4, SUSE Linux Enterprise Server 12-SP5, SUSE Linux Enterprise Server 15-LTSS, SUSE Linux Enterprise Server for SAP 12-SP2, SUSE Linux Enterprise Server for SAP 12-SP3, SUSE Linux Enterprise Server for SAP 15, SUSE OpenStack Cloud 7, SUSE OpenStack Cloud 8, SUSE OpenStack Cloud Crowbar 8; openSUSE Leap 15.1, openSUSE Leap 15.2 allows local attackers to escalate privileges from user ldap to root. This issue affects: SUSE Enterprise Storage 5 openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Debuginfo 11-SP3 openldap2 versions prior to 2.4.26-0.74.13.1,. SUSE Linux Enterprise Debuginfo 11-SP4 openldap2 versions prior to 2.4.26-0.74.13.1,. SUSE Linux Enterprise Point of Sale 11-SP3 openldap2 versions prior to 2.4.26-0.74.13.1,. SUSE Linux Enterprise Server 11-SECURITY openldap2-client-openssl1 versions prior to 2.4.26-0.74.13.1. SUSE Linux Enterprise Server 11-SP4-LTSS openldap2 versions prior to 2.4.26-0.74.13.1,. SUSE Linux Enterprise Server 12-SP2-BCL openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server 12-SP2-LTSS openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server 12-SP3-BCL openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server 12-SP3-LTSS openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server 12-SP4 openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server 12-SP5 openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server 15-LTSS openldap2 versions prior to 2.4.46-9.31.1. SUSE Linux Enterprise Server for SAP 12-SP2 openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server for SAP 12-SP3 openldap2 versions prior to 2.4.41-18.71.2. SUSE Linux Enterprise Server for SAP 15 openldap2 versions prior to 2.4.46-9.31.1. SUSE OpenStack Cloud 7 openldap2 versions prior to 2.4.41-18.71.2. SUSE OpenStack Cloud 8 openldap2 versions prior to 2.4.41-18.71.2. SUSE OpenStack Cloud Crowbar 8 openldap2 versions prior to 2.4.41-18.71.2. openSUSE Leap 15.1 openldap2 versions prior to 2.4.46-lp151.10.12.1. openSUSE Leap 15.2 openldap2 versions prior to 2.4.46-lp152.14.3.1.

Published: 2020-09-01 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-8023 is rated Exploit Available (57.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.41%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-8023

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-8023

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.41% +0.35%
2 2026-01-05 0.02% 0.06% +0.04%
3 2025-08-04 — 0.02% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-8023

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.7 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.5 5.2 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2020-8023

OS Trackers for CVE-2020-8023

vendor priority summary link
suse high CVE-2020-8023 severity important: SUSE including 473 source package names (0.1.0:libldap-2_4-2-2.4.46-9.31.1, 0.1.0:libldap-data-2.4.46-9.31.1, …), 746 product×package rows across 142 product lines (Container bci/dotnet-aspnet, Container bci/dotnet-runtime, … (142 product lines)): Fixed 589, Known Affected 157. https://www.suse.com/security/cve/CVE-2020-8023/

Affected software / configurations for CVE-2020-8023

Vendor Product Version Raw CPE
opensuse openldap2 < 2.4.41-18.71.2 cpe:2.3:a:opensuse:openldap2:*:*:*:*:*:*:*:*
opensuse openldap2 < 2.4.26-0.74.13.1 cpe:2.3:a:opensuse:openldap2:*:*:*:*:*:*:*:*
opensuse openldap2 < 2.4.46-9.31.1 cpe:2.3:a:opensuse:openldap2:*:*:*:*:*:*:*:*
opensuse openldap2 < 2.4.46-lp151.10.12.1 cpe:2.3:a:opensuse:openldap2:*:*:*:*:*:*:*:*

References for CVE-2020-8023

URL Tags
https://bugzilla.suse.com/show_bug.cgi?id=1172698 Exploit Issue Tracking Vendor Advisory
cvelogic Threat Intelligence