VDB-73415 · CVE-2011-4720 · EDB 18188

Serve TFTP Server 1.3.2 input validation

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.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Serve TFTP Server 1.3.2. Affected by this issue is some unknown functionality. The manipulation leads to input validation. This vulnerability is referenced as CVE-2011-4720. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Serve TFTP Server 1.3.2 (File Transfer Software). This issue affects some unknown processing. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

Hillstone HS TFTP Server 1.3.2 allows remote attackers to cause a denial of service (daemon crash) via a long filename in a (1) RRQ or (2) WRQ operation.

The weakness was published 12/27/2014 (Website). It is possible to read the advisory at secpod.org. The identification of this vulnerability is CVE-2011-4720 since 12/10/2011. 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 exploit is available at exploit-db.com. It is declared as proof-of-concept.

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 vulnerability database at Exploit-DB (18188). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

File Transfer Software

Vendor

Serve

Name

TFTP Server

Version

1.3.2

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 802406
OpenVAS Name: Hillstone Software TFTP Write/Read Request Server Denial Of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/10/2011 🔍
12/27/2014 +1113 days 🔍
12/27/2014 +0 days 🔍
03/27/2015 +90 days 🔍
02/27/2025 +3625 days 🔍

Sourcesinfo

Advisory: secpod.org
Status: Not defined

CVE: CVE-2011-4720 (🔍)
GCVE (CVE): GCVE-0-2011-4720
GCVE (VulDB): GCVE-100-73415
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/27/2015 14:56
Updated: 02/27/2025 10:30
Changes: 03/27/2015 14:56 (48), 03/28/2019 08:48 (2), 02/27/2025 10:30 (27)
Complete: 🔍
Cache ID: 216::103