CVE-2024-28820
OpenVPN-Auth-LDAP Buffer Overflowünchen
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.
INFO
Published Date :
June 27, 2024, 4:15 p.m.
Last Modified :
June 17, 2026, 7:21 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- There is no known solution at this time.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-28820.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-28820 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-28820
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-28820 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-28820 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:threerings:openvpn-auth-ldap:*:*:*:*:*:*:*:*'], 'vendor': 'threerings', 'product': 'openvpn-auth-ldap', 'versions': [{'status': 'affected', 'version': '2.04'}], 'defaultStatus': 'unknown'}] Added SSVC {'id': 'CVE-2024-28820', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2024-06-27T18:30:13.370526Z'} -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n/a', 'product': 'n/a', 'versions': [{'status': 'affected', 'version': 'n/a'}]}] -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/threerings/openvpn-auth-ldap/pull/92 Added Reference https://github.com/threerings/openvpn-auth-ldap/tags -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 04, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-125 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 25, 2024
Action Type Old Value New Value Removed CWE CISA-ADP CWE-121 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 03, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-121 Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L -
CVE Received by [email protected]
Jun. 27, 2024
Action Type Old Value New Value Added 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. Added Reference MITRE https://github.com/threerings/openvpn-auth-ldap/tags [No types assigned] Added Reference MITRE https://github.com/threerings/openvpn-auth-ldap/pull/92 [No types assigned]