Alt-N Webadmin webadmin.exe User 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.
7.0$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Alt-N Webadmin. This affects an unknown function in the library WebAdmin.dll of the file webadmin.exe. The manipulation of the argument User leads to memory corruption. This vulnerability is listed as CVE-2003-0471. In addition, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Alt-N Webadmin (the affected version is unknown) and classified as critical. This issue affects an unknown code in the library WebAdmin.dll of the file webadmin.exe. The manipulation of the argument USER 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 WebAdmin.exe for WebAdmin allows remote attackers to execute arbitrary code via an HTTP request to WebAdmin.dll with a long USER argument.

The weakness was presented 06/24/2003 by Mark Litchfield with NGSSoftware as not defined posting (Bugtraq). The advisory is shared at marc.theaimsgroup.com. The identification of this vulnerability is CVE-2003-0471 since 06/26/2003. 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 as well as a public exploit are known.

A public exploit has been developed in Perl Module and been published before and not just after the advisory. The exploit is available at metasploit.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 11771 (Alt-N WebAdmin Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 50076 (Alt-N WebAdmin USER Parameter Buffer Overflow Vulnerability).

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 2246. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2214.

The vulnerability is also documented in the databases at X-Force (11875), Exploit-DB (1210), Tenable (11771), SecurityFocus (BID 8024†) and OSVDB (2207†). See VDB-21381 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 11771
Nessus Name: Alt-N WebAdmin Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 11771
OpenVAS Name: WarFTPD Multiple Format String Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: altn_webadmin.rb
MetaSploit Name: Alt-N WebAdmin USER Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 2246
Snort Message: SERVER-WEBAPP webadmin.dll access
Snort Class: 🔍
TippingPoint: 🔍
SourceFire IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

06/24/2003 🔍
06/24/2003 +0 days 🔍
06/24/2003 +0 days 🔍
06/24/2003 +0 days 🔍
06/26/2003 +1 days 🔍
06/26/2003 +0 days 🔍
08/07/2003 +41 days 🔍
08/07/2003 +0 days 🔍
09/07/2003 +31 days 🔍
08/14/2014 +3994 days 🔍
08/13/2025 +4017 days 🔍

Sourcesinfo

Vendor: altn.com

Advisory: marc.theaimsgroup.com
Researcher: Mark Litchfield
Organization: NGSSoftware
Status: Confirmed

CVE: CVE-2003-0471 (🔍)
GCVE (CVE): GCVE-0-2003-0471
GCVE (VulDB): GCVE-100-20633
X-Force: 11875
SecurityFocus: 8024 - Alt-N WebAdmin USER Parameter Buffer Overflow Vulnerability
OSVDB: 2207 - Alt-N WebAdmin USER Remote Overflow
Vulnerability Center: 1949 - Alt-N WebAdmin Improper Input Validation Enables Arbitrary File Read, Medium

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

Entryinfo

Created: 08/14/2014 18:23
Updated: 08/13/2025 15:03
Changes: 08/14/2014 18:23 (87), 05/12/2019 11:53 (5), 02/23/2025 14:27 (18), 08/13/2025 15:03 (2)
Complete: 🔍
Cache ID: 216:6F5:103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!