CVE-2020-8023 Vulnerability Analysis & Exploit Details

CVE-2020-8023
Vulnerability Scoring

7.7
/10
Very High Risk

Highly exploitable, CVE-2020-8023 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2020-8023 Details

Status: Modified

Last updated: 🕠 21 Nov 2024, 05:38 UTC
Originally published on: 🕛 01 Sep 2020, 12:15 UTC

Time between publication and last update: 1541 days

CVSS Release: version 3

CVSS3 Source

meissner@suse.de

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVE-2020-8023 Vulnerability Summary

CVE-2020-8023: 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.

Assessing the Risk of CVE-2020-8023

Access Complexity Graph

The exploitability of CVE-2020-8023 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2020-8023

With low attack complexity and no required privileges, CVE-2020-8023 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-8023, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2020-8023, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2020-8023 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2020-8023 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: None
    CVE-2020-8023 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.042% (probability of exploit)

EPSS Percentile: 5.02% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 94.98% of others.

CVE-2020-8023 References

External References

CWE Common Weakness Enumeration

CWE-349

CAPEC Common Attack Pattern Enumeration and Classification

  • Cache Poisoning CAPEC-141 An attacker exploits the functionality of cache technologies to cause specific data to be cached that aids the attackers' objectives. This describes any attack whereby an attacker places incorrect or harmful material in cache. The targeted cache can be an application's cache (e.g. a web browser cache) or a public cache (e.g. a DNS or ARP cache). Until the cache is refreshed, most applications or clients will treat the corrupted cache value as valid. This can lead to a wide range of exploits including redirecting web browsers towards sites that install malware and repeatedly incorrect calculations based on the incorrect value.
  • DNS Cache Poisoning CAPEC-142 A domain name server translates a domain name (such as www.example.com) into an IP address that Internet hosts use to contact Internet resources. An adversary modifies a public DNS cache to cause certain names to resolve to incorrect addresses that the adversary specifies. The result is that client applications that rely upon the targeted cache for domain name resolution will be directed not to the actual address of the specified domain name but to some other address. Adversaries can use this to herd clients to sites that install malware on the victim's computer or to masquerade as part of a Pharming attack.
  • Manipulating Writeable Configuration Files CAPEC-75 Generally these are manually edited files that are not in the preview of the system administrators, any ability on the attackers' behalf to modify these files, for example in a CVS repository, gives unauthorized access directly to the application, the same as authorized users.

Vulnerable Configurations

  • cpe:2.3:a:opensuse:openldap2:2.4.26-0.74.13:*:*:*:*:*:*:*
    cpe:2.3:a:opensuse:openldap2:2.4.26-0.74.13:*:*:*:*:*:*:*
  • cpe:2.3:a:opensuse:openldap2:2.4.46-9.31.1:*:*:*:*:*:*:*
    cpe:2.3:a:opensuse:openldap2:2.4.46-9.31.1:*:*:*:*:*:*:*
  • cpe:2.3:a:opensuse:openldap2:2.4.46-9.37.1:*:*:*:*:*:*:*
    cpe:2.3:a:opensuse:openldap2:2.4.46-9.37.1:*:*:*:*:*:*:*
  • cpe:2.3:a:suse:enterprise_storage:5.0:*:*:*:*:*:*:*
    cpe:2.3:a:suse:enterprise_storage:5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:suse:openstack_cloud:7.0:*:*:*:*:*:*:*
    cpe:2.3:a:suse:openstack_cloud:7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:suse:openstack_cloud:8.0:*:*:*:*:*:*:*
    cpe:2.3:a:suse:openstack_cloud:8.0:*:*:*:*:*:*:*
  • cpe:2.3:a:suse:openstack_cloud_crowbar:8.0:*:*:*:*:*:*:*
    cpe:2.3:a:suse:openstack_cloud_crowbar:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:sap:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:sap:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:ltss:*:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:ltss:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:*:sap:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:*:sap:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:-:-:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:-:-:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:ltss:*:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:ltss:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp4:*:*:*:*:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp4:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:12:sp5:*:*:*:*:*:*
    cpe:2.3:o:suse:linux_enterprise_server:12:sp5:*:*:*:*:*:*
  • cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp3:*:*:*:*:*:*
    cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp3:*:*:*:*:*:*
  • cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*
    cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*
  • cpe:2.3:a:suse:linux_enterprise_point_of_sale:11:sp3:*:*:*:*:*:*
    cpe:2.3:a:suse:linux_enterprise_point_of_sale:11:sp3:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*
    cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:ltss:*:*:*
    cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:ltss:*:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:ltss:*:*
    cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:ltss:*:*
  • cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:sap:*:*
    cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:sap:*:*
  • cpe:2.3:a:opensuse:openldap2:2.4.41-18.71.2:*:*:*:*:*:*:*
    cpe:2.3:a:opensuse:openldap2:2.4.41-18.71.2:*:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
    cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
    cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

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