CVE-2021-45467

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.

CVSS v3.1

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

CVSS v3.1

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

EPSS

70.75% chance of exploitation in the next 30 days, 99th percentile

Nuclei

critical · CWE-862

Published

2022-12-26

Updated

2025-04-12

Proof-of-concept exploits (1)

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

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-45467.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2021-45466
• CVE-2021-45468
• CVE-2021-45464
• CVE-2021-45469
• CVE-2021-45461
• CVE-2021-45485