PCMan's FTP Server 2.0.7 memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in PCMan's FTP Server 2.0.7. Impacted is an unknown function. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2013-4730. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in PCMan's FTP Server 2.0.7 (File Transfer Software) and classified as very critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in PCMan s FTP Server 2.0.7 allows remote attackers to execute arbitrary code via a long string in a USER command.

The weakness was released 05/15/2014 by Jacob Holcomb (Website). The advisory is shared at exploit-db.com. The identification of this vulnerability is CVE-2013-4730 since 06/29/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/03/2025).

A public exploit has been developed by Jacob Holcomb in Python and been published before and not just after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 322 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (26471), SecurityFocus (BID 60837†) and OSVDB (94624†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.4

VulDB Base Score: 10.0
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Jacob Holcomb
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

OpenVAS ID: 803825
OpenVAS Name: PCMans FTP Server Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/pcman_ftpd_mkd
Saint Name: PCMan FTP Server MKD buffer overflow

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/27/2013 🔍
06/27/2013 +0 days 🔍
06/28/2013 +1 days 🔍
06/29/2013 +1 days 🔍
05/15/2014 +320 days 🔍
05/15/2014 +0 days 🔍
03/25/2015 +314 days 🔍
07/03/2025 +3753 days 🔍

Sourcesinfo

Advisory: exploit-db.com
Researcher: Jacob Holcomb
Status: Confirmed

CVE: CVE-2013-4730 (🔍)
GCVE (CVE): GCVE-0-2013-4730
GCVE (VulDB): GCVE-100-69701
SecurityFocus: 60837 - PCMan's FTP Server 'USER' Command Buffer Overflow Vulnerability
OSVDB: 94624

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

Entryinfo

Created: 03/25/2015 16:45
Updated: 07/03/2025 03:26
Changes: 03/25/2015 16:45 (57), 03/02/2018 09:47 (11), 07/03/2025 03:26 (15)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!