ClearOS 7.9 contains an OS command injection vulnerability in the Log Viewer component that allows authenticated attackers to execute arbitrary commands by submitting unsanitized input through the filter parameter, which is interpolated directly into a shell command in File.php. Attackers can inject command substitution payloads into the filter parameter to execute arbitrary commands as the webconfig user, and due to extensive NOPASSWD sudo privileges granted to that user by default, immediately escalate to root.
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History
Wed, 05 Aug 2026 10:45:00 +0000
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Clearfoundation clearos |
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Clearfoundation
Clearfoundation clearos |
Tue, 04 Aug 2026 18:30:00 +0000
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Mon, 03 Aug 2026 19:45:00 +0000
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| Description | ClearOS 7.9 contains an OS command injection vulnerability in the Log Viewer component that allows authenticated attackers to execute arbitrary commands by submitting unsanitized input through the filter parameter, which is interpolated directly into a shell command in File.php. Attackers can inject command substitution payloads into the filter parameter to execute arbitrary commands as the webconfig user, and due to extensive NOPASSWD sudo privileges granted to that user by default, immediately escalate to root. | |
| Title | ClearOS 7.9 OS Command Injection via Log Viewer filter parameter | |
| Weaknesses | CWE-78 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-08-03T19:05:57.272Z
Updated: 2026-08-04T17:12:40.179Z
Reserved: 2026-07-29T21:07:39.202Z
Link: CVE-2026-67599
Updated: 2026-08-04T17:12:33.335Z
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