Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2015-3306

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.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 10.0, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 5 products from fedoraproject, from debian, from opensuse and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-05-18T15:59:10.743

Last Modified

2026-10-09T16:17:18.210

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 10.0 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-284
Type: Secondary
CWE-284

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	fedoraproject	fedora	20	Yes
Operating System	fedoraproject	fedora	21	Yes
Operating System	fedoraproject	fedora	22	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	opensuse	tumbleweed	-	Yes
Operating System	suse	linux_enterprise_server	15	Yes
Operating System	suse	linux_enterprise_server	15	Yes
Application	proftpd	proftpd	1.3.5	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.html Broken Link, Mailing List, Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.html Broken Link, Mailing List, Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.html Broken Link, Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html Mailing List, Third Party Advisory ([email protected])
http://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.html Third Party Advisory, VDB Entry ([email protected])
http://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.html Third Party Advisory, VDB Entry ([email protected])
http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html Exploit, VDB Entry ([email protected])
http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html Exploit, VDB Entry ([email protected])
http://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.html Exploit, VDB Entry ([email protected])
http://www.debian.org/security/2015/dsa-3263 Mailing List, Third Party Advisory ([email protected])
http://www.rapid7.com/db/modules/exploit/unix/ftp/proftpd_modcopy_exec Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/74238 Third Party Advisory ([email protected])
https://www.exploit-db.com/exploits/36742/ Exploit ([email protected])
https://www.exploit-db.com/exploits/36803/ Exploit ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.html Broken Link, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.html Broken Link, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.html Broken Link, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html Exploit, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html Exploit, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.html Exploit, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3263 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.rapid7.com/db/modules/exploit/unix/ftp/proftpd_modcopy_exec Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/74238 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/36742/ Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/36803/ Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3306 US Government Resource (134c704f-9b21-4f2e-91b3-4a467353bcc0)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For fedoraproject's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.