CVE-2005-0194
First published: Sun Feb 06 2005(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Squid Web Proxy Cache | =2.3.stable3 | |
| Squid Web Proxy Cache | =2.2.stable2 | |
| Squid Web Proxy Cache | =2.2.stable3 | |
| Squid Web Proxy Cache | =2.0.patch2 | |
| Squid Web Proxy Cache | =2.1.patch2 | |
| Squid Web Proxy Cache | =2.5.stable5 | |
| Squid Web Proxy Cache | =2.2.stable4 | |
| Squid Web Proxy Cache | =2.0.patch1 | |
| Squid Web Proxy Cache | =2.1.patch1 | |
| Squid Web Proxy Cache | =2.3.devel3 | |
| Squid Web Proxy Cache | =2.5.stable3 | |
| Squid Web Proxy Cache | =2.4.stable4 | |
| Squid Web Proxy Cache | =2.1.release | |
| Squid Web Proxy Cache | =2.5.stable1 | |
| Squid Web Proxy Cache | =2.0.release | |
| Squid Web Proxy Cache | =2.1.pre4 | |
| Squid Web Proxy Cache | =2.1.pre3 | |
| Squid Web Proxy Cache | =2.3.stable1 | |
| Squid Web Proxy Cache | =2.4.stable7 | |
| Squid Web Proxy Cache | =2.2.devel4 | |
| Squid Web Proxy Cache | =2.5.stable6 | |
| Squid Web Proxy Cache | =2.3.stable2 | |
| Squid Web Proxy Cache | =2.4.stable1 | |
| Squid Web Proxy Cache | =2.2.stable1 | |
| Squid Web Proxy Cache | =2.5.stable4 | |
| Squid Web Proxy Cache | =2.5.stable2 | |
| Squid Web Proxy Cache | =2.3.stable4 | |
| Squid Web Proxy Cache | =2.1.pre1 | |
| Squid Web Proxy Cache | =2.4.stable2 | |
| Squid Web Proxy Cache | =2.2.pre1 | |
| Squid Web Proxy Cache | =2.2.devel3 | |
| Squid Web Proxy Cache | =2.4.stable3 | |
| Squid Web Proxy Cache | =2.3.stable5 | |
| Squid Web Proxy Cache | =2.2.stable5 | |
| Squid Web Proxy Cache | =2.2.pre2 | |
| Squid Web Proxy Cache | =2.0.pre1 | |
| Squid Web Proxy Cache | =2.4.stable6 | |
| Squid Web Proxy Cache | =2.3.devel2 |
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Reference Links
- http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-empty_acls.patch
- http://www.squid-cache.org/bugs/show_bug.cgi?id=1166
- http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-empty_acls
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000923
- http://www.debian.org/security/2005/dsa-667
- http://www.kb.cert.org/vuls/id/260421
- http://fedoranews.org/updates/FEDORA--.shtml
- http://marc.info/?l=bugtraq&m=110901183320453&w=2
Frequently Asked Questions
What is the severity of CVE-2005-0194?
CVE-2005-0194 has a medium severity rating as it can allow remote attackers to bypass access control lists.
How do I fix CVE-2005-0194?
To fix CVE-2005-0194, ensure that all Access Control Lists in the Squid configuration file are properly defined and avoid leaving any ACLs empty.
Which versions of Squid are affected by CVE-2005-0194?
CVE-2005-0194 affects multiple versions including Squid 2.0.patch1 up to 2.5.stable6.
What is the exploit vector for CVE-2005-0194?
The exploit vector for CVE-2005-0194 is primarily through misconfiguration of empty Access Control Lists in the Squid configuration.
What happens if I ignore the warnings related to CVE-2005-0194?
Ignoring the warnings related to CVE-2005-0194 could lead to unintentional access by remote attackers.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/author
- agent/remedy
- agent/last-modified-date
- agent/severity
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/nvd-historical
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/squid
- canonical/squid web proxy cache
- version/squid web proxy cache/2.3.stable3
- version/squid web proxy cache/2.2.stable2
- version/squid web proxy cache/2.2.stable3
- version/squid web proxy cache/2.0.patch2
- version/squid web proxy cache/2.1.patch2
- version/squid web proxy cache/2.5.stable5
- version/squid web proxy cache/2.2.stable4
- version/squid web proxy cache/2.0.patch1
- version/squid web proxy cache/2.1.patch1
- version/squid web proxy cache/2.3.devel3
- version/squid web proxy cache/2.5.stable3
- version/squid web proxy cache/2.4.stable4
- version/squid web proxy cache/2.1.release
- version/squid web proxy cache/2.5.stable1
- version/squid web proxy cache/2.0.release
- version/squid web proxy cache/2.1.pre4
- version/squid web proxy cache/2.1.pre3
- version/squid web proxy cache/2.3.stable1
- version/squid web proxy cache/2.4.stable7
- version/squid web proxy cache/2.2.devel4
- version/squid web proxy cache/2.5.stable6
- version/squid web proxy cache/2.3.stable2
- version/squid web proxy cache/2.4.stable1
- version/squid web proxy cache/2.2.stable1
- version/squid web proxy cache/2.5.stable4
- version/squid web proxy cache/2.5.stable2
- version/squid web proxy cache/2.3.stable4
- version/squid web proxy cache/2.1.pre1
- version/squid web proxy cache/2.4.stable2
- version/squid web proxy cache/2.2.pre1
- version/squid web proxy cache/2.2.devel3
- version/squid web proxy cache/2.4.stable3
- version/squid web proxy cache/2.3.stable5
- version/squid web proxy cache/2.2.stable5
- version/squid web proxy cache/2.2.pre2
- version/squid web proxy cache/2.0.pre1
- version/squid web proxy cache/2.4.stable6
- version/squid web proxy cache/2.3.devel2