CVE-2021-45467

high-risk
Published 2022-12-26

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.

Do I need to act?

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87.9% chance of exploitation in next 30 days
EPSS score — higher than 12% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Control-Webpanel

References (4)

Release Notes https://control-webpanel.com/changelog
Exploit https://octagon.net/blog/2022/01/22/cve-2021-45467-cwp-centos-web-panel-preauth-...
Release Notes https://control-webpanel.com/changelog
Exploit https://octagon.net/blog/2022/01/22/cve-2021-45467-cwp-centos-web-panel-preauth-...
57
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 20/34 · Moderate
Exposure 5/34 · Minimal