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Fencer Intel
critical 10.0

CVE-2015-3306 kev in the critical feed json

The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.

published 2015-05-18 11 y ago modified 2026-10-09 31 d ago also EUVD-2015-3352

cvss
10.0
version 3.1, CNA
cisa kev
Exploited
added 2026-10-08
epss
99.5%
EPSS 99.5% chance of exploitation in 30 days, percentile 99.9%
public exploits
5
Metasploit, Exploit-DB, plus a Nuclei check

Summary

The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.

Patch / fix

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.

  • proftpd-dfsg Debian 14, Debian 13, Debian 12 1.3.5-2

debian advisories DEBIAN-CVE-2015-3306

  • proftpd-dfsg Ubuntu 14.04 LTS 1.3.5~rc3-2.1ubuntu2.1

ubuntu advisories UBUNTU-CVE-2015-3306

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • proftpd openSUSE Tumbleweed 1.3.5b-2.5

opensuse advisories openSUSE-SU-2024:10048-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-3306 updated cvss 7.8

proftpd: unauthenticated copying of files via SITE CPFR/CPTO allowed by mod_copy

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-36742)
  2. Published
  3. Added to CISA KEV
  4. CISA SSVC: exploitation active
  5. CISA patch deadline

Known exploited

Added
32 d ago
Patch by
2026-10-11 (29 d ago)
Ransomware
Not known
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.
Vendor, product
ProFTPD, ProFTPD
CISA name
ProFTPD Improper Access Control Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
31 d ago

Exploit prediction

99.50% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/unix/ftp/proftpd_modcopy_exec ProFTPD 1.3.5 Mod_Copy Command Execution metasploit exploit, excellent rank, 2015-04-22
  • EDB-49908 ProFTPd 1.3.5 - 'mod_copy' Remote Command Execution (2) remote, 2021-05-26
  • EDB-37262 ProFTPd 1.3.5 - 'mod_copy' Command Execution (Metasploit) remote, 2015-06-10
  • EDB-36803 ProFTPd 1.3.5 - 'mod_copy' Remote Command Execution remote, 2015-04-21
  • EDB-36742 ProFTPd 1.3.5 - File Copy remote, 2015-04-13
  • Nuclei template ProFTPd - Remote Code Execution nuclei detection template
  • packetstormsecurity.com http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.