CVE-2024-28820 - Vulnerability Details - OpenCVE

Description

Buffer overflow in the extract_openvpn_cr function in openvpn-cr.c in openvpn-auth-ldap (aka the Three Rings Auth-LDAP plugin for OpenVPN) 2.0.4 allows attackers with a valid LDAP username and who can control the challenge/response password field to pass a string with more than 14 colons into this field and cause a buffer overflow.

Published: 2024-06-27

Score: 6.3 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

No data.

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00216.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/threerings/openvpn-auth-ldap/pull/92
https://github.com/threerings/openvpn-auth-ldap/tags

History

Mon, 04 Nov 2024 18:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-125

Fri, 25 Oct 2024 19:00:00 +0000

Type	Values Removed	Values Added
Weaknesses	CWE-121

Subscriptions

Threerings Openvpn-auth-ldap

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2024-06-27T00:00:00.000Z

Updated: 2024-11-04T17:54:47.731Z

Reserved: 2024-03-11T00:00:00.000Z

Link: CVE-2024-28820

Vulnrichment

Updated: 2024-08-02T00:56:58.128Z

NVD

Status : Deferred

Published: 2024-06-27T16:15:10.950

Modified: 2026-04-15T00:35:42.020

Link: CVE-2024-28820

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-125

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