CVE-2004-0189
First published: Mon Mar 15 2004(Updated: )
The "%xx" URL decoding function in Squid 2.5STABLE4 and earlier allows remote attackers to bypass url_regex ACLs via a URL with a NULL ("%00") character, which causes Squid to use only a portion of the requested URL when comparing it against the access control lists.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Squid Web Proxy Cache | =2.0_patch2 | |
| Squid Web Proxy Cache | =2.1_patch2 | |
| Squid Web Proxy Cache | =2.3_stable5 | |
| Squid Web Proxy Cache | =2.4 | |
| Squid Web Proxy Cache | =2.4_stable7 | |
| Squid Web Proxy Cache | =2.5_stable3 | |
| Squid Web Proxy Cache | =2.5_stable4 |
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Reference Links
- http://www.squid-cache.org/Advisories/SQUID-2004_1.txt
- http://www.securityfocus.com/bid/9778
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000838
- http://www.debian.org/security/2004/dsa-474
- http://security.gentoo.org/glsa/glsa-200403-11.xml
- http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025
- http://www.redhat.com/support/errata/RHSA-2004-133.html
- http://www.redhat.com/support/errata/RHSA-2004-134.html
- http://www.osvdb.org/5916
- http://marc.info/?l=bugtraq&m=108084935904110&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15366
Frequently Asked Questions
What is the severity of CVE-2004-0189?
CVE-2004-0189 is considered a moderate severity vulnerability due to its potential to bypass access control lists in Squid.
How do I fix CVE-2004-0189?
To fix CVE-2004-0189, upgrade to a version of Squid greater than 2.5_stable4 that contains the relevant patches.
Which versions of Squid are affected by CVE-2004-0189?
CVE-2004-0189 affects Squid 2.0_patch2, 2.1_patch2, 2.3_stable5, 2.4, 2.4_stable7, and 2.5_stable4.
What type of attack does CVE-2004-0189 enable?
CVE-2004-0189 enables remote attackers to bypass URL filtering and access control mechanisms.
Is there a workaround for CVE-2004-0189?
A workaround for CVE-2004-0189 may include reviewing and tightening access control lists, but upgrading is recommended for complete mitigation.
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/weakness
- agent/author
- agent/last-modified-date
- agent/references
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-historical
- vendor/squid
- canonical/squid web proxy cache
- version/squid web proxy cache/2.0_patch2
- version/squid web proxy cache/2.1_patch2
- version/squid web proxy cache/2.3_stable5
- version/squid web proxy cache/2.4
- version/squid web proxy cache/2.4_stable7
- version/squid web proxy cache/2.5_stable3
- version/squid web proxy cache/2.5_stable4