ProFTPD 1.3.4e/1.3.5 mod_copy cpfr/cpto File access control

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.21

Summaryinfo

A vulnerability was found in ProFTPD 1.3.4e/1.3.5 and classified as critical. This impacts an unknown function of the component mod_copy. Executing a manipulation of the argument cpfr/cpto can lead to access control (File). This vulnerability is handled as CVE-2015-3306. Additionally, an exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in ProFTPD 1.3.4e/1.3.5 (File Transfer Software). It has been declared as critical. This vulnerability affects an unknown code of the component mod_copy. The manipulation of the argument cpfr/cpto with an unknown input leads to a access control vulnerability (File). The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was released 05/18/2015 (Website). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2015-3306 since 04/15/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed in Ruby and been published even before and not after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 35 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 83752 (FreeBSD : proftpd -- arbitrary code execution vulnerability with chroot (d0034536-ff24-11e4-a072-d050996490d0)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167931 (OpenSuSE Security Update for proftpd (openSUSE-SU-2015:1031-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The vulnerability will be addressed with the following lines of code:

#Uncomment the following line
#
#LoadModule mod_copy.c
Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 19839.

The vulnerability is also documented in the databases at Exploit-DB (36742), Tenable (83752), SecurityFocus (BID 74238†) and Vulnerability Center (SBV-50226†). Entry connected to this vulnerability is available at VDB-10259. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: File
Class: Access control / File
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 83752
Nessus Name: FreeBSD : proftpd -- arbitrary code execution vulnerability with chroot (d0034536-ff24-11e4-a072-d050996490d0)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703263
OpenVAS Name: Debian Security Advisory DSA 3263-1 (proftpd-dfsg - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/proftpd_mod_copy
Saint Name: ProFTPD mod_copy command execution

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: proftpd_modcopy_exec.rb
MetaSploit Name: ProFTPD 1.3.5 Mod_Copy Command Execution
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

01/01/2014 🔍
04/13/2015 +467 days 🔍
04/13/2015 +0 days 🔍
04/15/2015 +2 days 🔍
04/20/2015 +5 days 🔍
05/18/2015 +28 days 🔍
05/18/2015 +0 days 🔍
05/19/2015 +1 days 🔍
05/19/2015 +0 days 🔍
05/21/2015 +2 days 🔍
11/29/2024 +3480 days 🔍

Sourcesinfo

Product: github.com

Advisory: 131505
Status: Confirmed

CVE: CVE-2015-3306 (🔍)
GCVE (CVE): GCVE-0-2015-3306
GCVE (VulDB): GCVE-100-75436

OVAL: 🔍

SecurityFocus: 74238 - ProFTPD CVE-2015-3306 Information Disclosure Vulnerabilities
Vulnerability Center: 50226 - ProFTPD 1.3.5 Remote File System Read and Write Vulnerabilities, Critical

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/19/2015 10:27
Updated: 11/29/2024 01:59
Changes: 05/19/2015 10:27 (83), 06/29/2017 07:15 (11), 05/17/2022 21:15 (3), 05/17/2022 21:24 (1), 11/29/2024 01:59 (14)
Complete: 🔍
Cache ID: 216:408:103

Once again VulDB remains the best source for vulnerability data.

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