CVE-2005-0194
HighSummary
The vulnerability in Squid 2.5 involves incorrect processing of empty Access Control Lists (ACLs) during configuration file parsing, particularly proxy_auth ACLs without defined auth schemes, which effectively removes arguments and could allow remote attackers to bypass intended ACLs if the administrator ignores parser warnings.
Risk Assessment
The risk is the potential bypass of access controls by unauthorized users, leading to unauthorized access to resources protected by Squid.
Recommendation
It is recommended to upgrade Squid to version 2.5.STABLE9 or later, carefully review parser warnings during configuration, and avoid defining empty proxy_auth ACLs without auth schemes.
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Original NVD description (English source)
Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings.