9.8
CRITICAL
CVE-2023-40253
"Genians Genian NAC/Genian NAC Suite/Genian ZTNA Authentication Bypass"
Description

Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Authentication Abuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.

INFO

Published Date :

Aug. 11, 2023, 6:15 a.m.

Last Modified :

Nov. 21, 2024, 8:19 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-40253 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Genians genian_nac
2 Genians genian_ztna
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-2023-40253.

URL Resource
https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html
https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html

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-2023-40253 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-40253 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.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Aug. 29, 2023

    Action Type Old Value New Value
    Removed Reference https://www.genians.co.kr/notice/2023 [Vendor Advisory]
    Added Reference https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html [No Types Assigned]
    Removed CWE KrCERT/CC CWE-287
    Added CWE KrCERT/CC CWE-78
  • Initial Analysis by [email protected]

    Aug. 23, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.genians.co.kr/notice/2023 No Types Assigned https://www.genians.co.kr/notice/2023 Vendor Advisory
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:a:genians:genian_nac:*:*:*:*:-:*:*:* versions from (including) 4.0.0 up to (excluding) 4.0.156 *cpe:2.3:a:genians:genian_nac:*:*:*:*:-:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.55 *cpe:2.3:a:genians:genian_nac:5.0.42:-:*:*:lts:*:*:* *cpe:2.3:a:genians:genian_nac:5.0.42:revision_117460:*:*:lts:*:*:* *cpe:2.3:a:genians:genian_ztna:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.0.16
  • CVE Modified by [email protected]

    Aug. 21, 2023

    Action Type Old Value New Value
    Changed Description Improper Control of Generation of Code ('Code Injection') vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Replace Trusted Executable.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15. Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Authentication Abuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.
    Removed CVSS V3.1 KrCERT/CC AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
    Added CVSS V3.1 KrCERT/CC AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
    Removed CWE KrCERT/CC CWE-94
    Added CWE KrCERT/CC CWE-287
  • CVE Modified by [email protected]

    Aug. 21, 2023

    Action Type Old Value New Value
    Removed CVSS V3.1 KrCERT/CC AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
    Added CVSS V3.1 KrCERT/CC AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
  • CVE Modified by [email protected]

    Aug. 17, 2023

    Action Type Old Value New Value
    Changed Description Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Functionality Misuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15. Improper Control of Generation of Code ('Code Injection') vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Replace Trusted Executable.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.
    Removed CVSS V3.1 KrCERT/CC AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
    Added CVSS V3.1 KrCERT/CC AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
    Removed CWE KrCERT/CC CWE-287
    Added CWE KrCERT/CC CWE-94
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-40253 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.17 }} 0.00%

score

0.54250

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
Confidentiality
Integrity
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