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 Squid ACLs May Be Confusing When Empty Lists are Declared
Categorie: Vulnerability
Posted: 2004-12-27 by ReCall
Views: 531
Source: Click here
 
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 Details
Description: A security issue was reported in the Squid proxy caching server. An administrator may be confused about the meaning of access controls in certain cases.

If any empty access control lists are declared, the system may implement an access control configuration that the administrator does not expect.

For example, the following lines will be parsed as "http_access allow somewhere":

acl something src "/path/to/empty_file.txt"
http_access allow something somewhere

The vendor has classified this as having "minor security" severity.

Impact: An administrator may be confused about the meaning of the implemented access controls when empty lists are defined.

Solution: A patch is available at:

http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-empty_acls.patch
 
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