CVE-2023-27991
Zyxel ATP/USG FLEX/USG20/VPN Command Injection
Description
The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker to execute some OS commands remotely.
INFO
Published Date :
April 24, 2023, 6:15 p.m.
Last Modified :
June 13, 2023, 1:18 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2023-27991
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.
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-2023-27991.
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-2023-27991 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-27991 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Jun. 13, 2023
Action Type Old Value New Value Changed CPE Configuration AND OR OR cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jun. 07, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 from (excluding) 5.36 OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 from (excluding) 5.36 -
CPE Deprecation Remap by [email protected]
Jun. 07, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 from (excluding) 5.36 OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 from (excluding) 5.36 -
Initial Analysis by [email protected]
May. 03, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-xss-vulnerability-and-post-authentication-command-injection-vulnerability-in-firewalls No Types Assigned https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-xss-vulnerability-and-post-authentication-command-injection-vulnerability-in-firewalls Vendor Advisory Added CWE NIST CWE-78 Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg20-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:usg20-vpn:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:vpn100:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 OR cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-27991 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-2023-27991
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.03%
score
0.33437
percentile