AmmSoft ScriptFTP 3.3 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in AmmSoft ScriptFTP 3.3. It has been declared as critical. This vulnerability affects unknown code. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2011-3976. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in AmmSoft ScriptFTP 3.3 and classified as critical. Affected by this issue is some unknown processing. 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. CVE summarizes:

Stack-based buffer overflow in AmmSoft ScriptFTP 3.3 allows remote FTP servers to execute arbitrary code via a long filename in a response to a LIST command, as demonstrated using (1) GETLIST or (2) GETFILE in a ScriptFTP script.

The weakness was published 10/04/2011 by Tom Gregory as confirmed advisory (CERT.org). The advisory is shared for download at kb.cert.org. This vulnerability is handled as CVE-2011-3976 since 10/03/2011. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by modpr0be in Python and been published before and not just after the advisory. The exploit is available at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121190 (AmmSoft ScriptFTP LIST Command Response Parsing Remote Overflow).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 19631.

The vulnerability is also documented in the databases at X-Force (69962), Exploit-DB (17876), SecurityFocus (BID 49707†), OSVDB (75633†) and Secunia (SA46099†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Highly functional
Author: modpr0be
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 902571
OpenVAS Name: ScriptFTP GETLIST or GETFILE Commands Remote Buffer Overflow Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: scriptftp_list.rb
MetaSploit Name: ScriptFTP LIST Remote Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

09/20/2011 🔍
09/20/2011 +0 days 🔍
09/20/2011 +0 days 🔍
09/20/2011 +0 days 🔍
10/03/2011 +13 days 🔍
10/04/2011 +1 days 🔍
10/04/2011 +0 days 🔍
06/17/2013 +622 days 🔍
03/23/2015 +644 days 🔍
01/05/2025 +3576 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Tom Gregory
Status: Confirmed

CVE: CVE-2011-3976 (🔍)
GCVE (CVE): GCVE-0-2011-3976
GCVE (VulDB): GCVE-100-58820
CERT: 🔍
X-Force: 69962
SecurityFocus: 49707 - AmmSoft ScriptFTP 'GETLIST' or 'GETFILE' Commands Remote Buffer Overflow Vulnerability
Secunia: 46099
OSVDB: 75633
Vulnerability Center: 40035 - AmmSoft ScriptFTP 3.3 Stack Based Buffer Overflow Allows Remote Code Execution via a Long Filename, Medium

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 01/05/2025 22:47
Changes: 03/23/2015 16:50 (68), 05/03/2017 16:15 (12), 12/02/2024 03:54 (17), 01/05/2025 22:47 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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