CVE-2021-45467

CRITICAL EXPLOITED NUCLEI

Control Web Panel < 0.9.8.1107 - Unauthenticated API Key Registration via Null Byte Injection

Title source: llm

Exploitation Summary

CVE-2021-45467 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.

Description

In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, an unauthenticated attacker can use %00 bytes to cause /user/loader.php to register an arbitrary API key, as demonstrated by a /user/loader.php?api=1&scripts= .%00./.%00./api/account_new_create&acc=guadaapi URI. Any number of %00 instances can be used, e.g., .%00%00%00./.%00%00%00./api/account_new_create could also be used for the scripts parameter.

Nuclei Templates (1)

Control Web Panel (CWP) - File Inclusion

CRITICALby ritikchaddha

FOFA: icon_hash="-356182173"

References (2)

Core 2

Core References

Release Notes, Vendor Advisory

https://control-webpanel.com/changelog

Exploit, Third Party Advisory

https://octagon.net/blog/2022/01/22/cve-2021-45467-cwp-centos-web-panel-preauth-rce/

Scores

CVSS v3 9.8

EPSS 0.7095

EPSS Percentile 99.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

VulnCheck KEV 2024-05-15

CWE

CWE-862

Status published

Products (1)

control-webpanel/webpanel < 0.9.8.1107

Published Dec 26, 2022

Tracked Since Feb 18, 2026