LemonLDAP::NG up to 2.16.0 2FA Authentication improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in LemonLDAP::NG up to 2.16.0. Affected by this issue is some unknown functionality of the component 2FA Authentication. The manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2023-28862. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in LemonLDAP::NG up to 2.16.0 (Directory Service Software). This issue affects an unknown functionality of the component 2FA Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in LemonLDAP::NG before 2.16.1. Weak session ID generation in the AuthBasic handler and incorrect failure handling during a password check allow attackers to bypass 2FA verification. Any plugin that tries to deny session creation after the store step does not deny an AuthBasic session.

The weakness was disclosed 03/31/2023 as 2896. It is possible to read the advisory at gitlab.ow2.org. The identification of this vulnerability is CVE-2023-28862 since 03/26/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.16.1 eliminates this vulnerability. The upgrade is hosted for download at gitlab.ow2.org.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-32483). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LemonLDAP::NG 2.16.1

Timelineinfo

03/26/2023 🔍
03/31/2023 +4 days 🔍
03/31/2023 +0 days 🔍
12/07/2025 +982 days 🔍

Sourcesinfo

Advisory: 2896
Status: Confirmed

CVE: CVE-2023-28862 (🔍)
GCVE (CVE): GCVE-0-2023-28862
GCVE (VulDB): GCVE-100-224687
EUVD: 🔍

Entryinfo

Created: 03/31/2023 19:34
Updated: 12/07/2025 16:22
Changes: 03/31/2023 19:34 (42), 04/21/2023 09:03 (11), 12/07/2025 16:22 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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