ProFTPD 1.3.0 main.c CommandBufferSize memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in ProFTPD 1.3.0 and classified as problematic. Affected is the function CommandBufferSize of the file main.c. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2006-5815. Furthermore, an exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in ProFTPD 1.3.0 (File Transfer Software) and classified as critical. This issue affects the function CommandBufferSize of the file main.c. 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 availability. The summary by CVE is:

Stack-based buffer overflow in the sreplace function in ProFTPD 1.3.0 and earlier allows remote attackers, probably authenticated, to cause a denial of service and execute arbitrary code, as demonstrated by vd_proftpd.pm, a "ProFTPD remote exploit."

The weakness was published 11/22/2006 by Evgeny Legerov with ProFTPD Team (Website). The advisory is shared at proftp.cvs.sourceforge.net. The identification of this vulnerability is CVE-2006-5815 since 11/08/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in Perl Module and been published 6 days after the advisory. The exploit is available at securityfocus.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 24602 (Mandrake Linux Security Advisory : proftpd (MDKSA-2006:217-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27285 (ProFTPD SReplace Remote Buffer Overflow Vulnerability).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at proftp.cvs.sourceforge.net. A possible mitigation has been published 2 months after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 26189.

The vulnerability is also documented in the databases at X-Force (30147), Exploit-DB (16852), Tenable (24602), SecurityFocus (BID 20992†) and OSVDB (30267†). Similar entries are available at VDB-2673, VDB-2711 and VDB-33495. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
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Current Price Estimation: 🔍

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Nessus ID: 24602
Nessus Name: Mandrake Linux Security Advisory : proftpd (MDKSA-2006:217-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57592
OpenVAS Name: Debian Security Advisory DSA 1218-1 (proftpd)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: proftp_sreplace.rb
MetaSploit Name: ProFTPD 1.2 - 1.3.0 sreplace Buffer Overflow (Linux)
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Patch: proftp.cvs.sourceforge.net
TippingPoint: 🔍
PaloAlto IPS: 🔍

Timelineinfo

11/07/2006 🔍
11/08/2006 +1 days 🔍
11/08/2006 +0 days 🔍
11/08/2006 +0 days 🔍
11/10/2006 +2 days 🔍
11/10/2006 +0 days 🔍
11/22/2006 +11 days 🔍
11/27/2006 +5 days 🔍
11/28/2006 +1 days 🔍
11/28/2006 +0 days 🔍
12/04/2006 +6 days 🔍
12/21/2006 +17 days 🔍
02/18/2007 +59 days 🔍
06/15/2025 +6692 days 🔍

Sourcesinfo

Advisory: proftp.cvs.sourceforge.net
Researcher: Evgeny Legerov
Organization: ProFTPD Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-5815 (🔍)
GCVE (CVE): GCVE-0-2006-5815
GCVE (VulDB): GCVE-100-2705
X-Force: 30147 - ProFTPD sreplace() buffer overflow, High Risk
SecurityFocus: 20992 - ProFTPD SReplace Remote Buffer Overflow Vulnerability
Secunia: 23207 - Slackware update for proftpd, Moderately Critical
OSVDB: 30267 - ProFTPD src/support.c sreplace() Function Remote Overflow
SecurityTracker: 1017167 - ProFTPD sreplace() Off-by-one Bug Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 13150 - ProFTPD 1.3.0 Buffer Overflow Allows Remote Denial of Service, Critical
Vupen: ADV-2006-4451

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

Entryinfo

Created: 11/27/2006 10:04
Updated: 06/15/2025 16:57
Changes: 11/27/2006 10:04 (98), 08/20/2017 22:07 (15), 03/13/2021 16:02 (3), 06/23/2024 16:10 (20), 03/08/2025 17:04 (1), 06/15/2025 16:57 (2)
Complete: 🔍
Cache ID: 216:575:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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