ProFTPD 1.3.2/1.3.3 Telnet netio.c pr_netio_telnet_gets memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

A vulnerability was found in ProFTPD 1.3.2/1.3.3 (File Transfer Software). It has been classified as very critical. Affected is the function pr_netio_telnet_gets of the file netio.c of the component Telnet. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to execute arbitrary code via vectors involving a TELNET IAC escape character to a (1) FTP or (2) FTPS server.

The weakness was published 11/09/2010 by TJ Saunders (Website). The advisory is available at zerodayinitiative.com. This vulnerability is traded as CVE-2010-4221 since 11/09/2010. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/28/2021).

A public exploit has been developed in Ruby. The exploit is shared for download at securityfocus.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 70446 (ProFTPD TELNET IAC Escape Sequence Remote Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27337 (ProFTPD Directory Traversal and Remote Buffer Overflow Vulnerabilities).

Upgrading to version 1.3.3 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 10641.

The vulnerability is also documented in the databases at X-Force (62908) and Tenable (70446). Similar entries are available at 55403 and 55392.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

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: 70446
Nessus Name: ProFTPD TELNET IAC Escape Sequence Remote Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 68702
OpenVAS Name: FreeBSD Ports: proftpd
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/proftpd_telnet_iac
Saint Name: ProFTPD Telnet IAC buffer overflow

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: proftp_telnet_iac.rb
MetaSploit Name: ProFTPD 1.3.2rc3 - 1.3.3b Telnet IAC Buffer Overflow (Linux)
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ProFTPD 1.3.3
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

11/01/2010 🔍
11/01/2010 +0 days 🔍
11/01/2010 +0 days 🔍
11/09/2010 +8 days 🔍
11/09/2010 +0 days 🔍
11/09/2010 +0 days 🔍
11/14/2010 +5 days 🔍
10/15/2013 +1066 days 🔍
03/19/2015 +520 days 🔍
09/28/2021 +2385 days 🔍

Sourcesinfo

Advisory: zerodayinitiative.com
Researcher: TJ Saunders
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-4221 (🔍)
X-Force: 62908
Vulnerability Center: 28149 - ProFTPD before 1.3.3c Remote Multiple Stack-Based Buffer Overflow Vulnerabilities, Critical
SecurityFocus: 44562 - ProFTPD Multiple Remote Vulnerabilities
Secunia: 42052 - ProFTPD Directory Traversal and Buffer Overflow Vulnerabilities, Highly Critical
Vupen: ADV-2010-2941

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

Entryinfo

Created: 03/19/2015 14:37
Updated: 09/28/2021 23:00
Changes: 03/19/2015 14:37 (77), 03/09/2017 08:07 (19), 09/28/2021 23:00 (3)
Complete: 🔍

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