CVE-2002-0419 : Détail

CVE-2002-0419

A01-Broken Access Control
2.4%V3
Network
2002-06-11
02h00 +00:00
2016-10-17
11h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Information leaks in IIS 4 through 5.1 allow remote attackers to obtain potentially sensitive information or more easily conduct brute force attacks via responses from the server in which (2) in certain configurations, the server IP address is provided as the realm for Basic authentication, which could reveal real IP addresses that were obscured by NAT, or (3) when NTLM authentication is used, the NetBIOS name of the server and its Windows NT domain are revealed in response to an Authorization request. NOTE: this entry originally contained a vector (1) in which the server reveals whether it supports Basic or NTLM authentication through 401 Access Denied error messages. CVE has REJECTED this vector; it is not a vulnerability because the information is already available through legitimate use, since authentication cannot proceed without specifying a scheme that is supported by both the client and the server.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 5 AV:N/AC:L/Au:N/C:P/I:N/A:N [email protected]

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 21313

Date de publication : 2002-03-04 23h00 +00:00
Auteur : David Litchfield
EDB Vérifié : Yes

source: https://www.securityfocus.com/bid/4235/info Microsoft IIS supports Basic and NTLM authentication. Reportedly, the authentication methods supported by a given IIS server can be revealed to an attacker through the inspection of returned error messages, even when anonymous access is also granted. When a valid authentication request is submitted for either message with an invalid username and password, an error message will be returned. This happens even if anonymous access to the requested resource is allowed. An attacker may be able to use this information to launch further intelligent attacks against the server, or to launch a brute-force password attack against a known username. GET / HTTP/1.1 Host: iis-server Authorization: Basic cTFraTk6ZDA5a2xt GET / HTTP/1.1 Host: iis-server Authorization: Negotiate TlRMTVNTUAABAAAAB4IAoAAAAAAAAAAAAAAAAAAAAAA=

Products Mentioned

Configuraton 0

Microsoft>>Internet_information_server >> Version 4.0

Microsoft>>Internet_information_server >> Version 4.0

Microsoft>>Internet_information_services >> Version 5.0

Références

http://www.securityfocus.com/bid/4235
Tags : vdb-entry, x_refsource_BID
http://marc.info/?l=bugtraq&m=101535399100534&w=2
Tags : mailing-list, x_refsource_BUGTRAQ