Live › vulnerability › CVE-2015-3306
Go to dashboardProFTPD's mod_copy module accepts the SITE CPFR and SITE CPTO commands without proper access control, so a remote unauthenticated client can copy and overwrite files anywhere the server process can reach. Attackers can use this to read sensitive files and plant content such as web shells or altered configuration.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| ProFTPD ProFTPD | vendor | – | – |
| fedoraproject fedora | vendor | = 20 | – |
| fedoraproject fedora | vendor | = 21 | – |
| fedoraproject fedora | vendor | = 22 | – |
| debian linux |
| vendor |
| = 7.0 |
| – |
| debian linux | vendor | = 8.0 | – |
| debian linux | vendor | = 9.0 | – |
| opensuse tumbleweed | vendor | – | – |
| suse linux enterprise server | vendor | = 15 | – |
| proftpd | vendor | = 1.3.5 | – |
proftpd -V or look for mod_copy in the ProFTPD configuration (LoadModule or compiled-in modules); the sources do not give a specific command beyond thisSITE CPFR to the FTP port and see whether the server responds with a 350 statusEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.
CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
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