CVE-2004-0189
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 13.8%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 13.81% probability · 96th percentile
- CISA KEV
- Not listed
- Affected
- squid/squid
- Source
- cve@mitre.org
References
- ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt
- ftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000838
- http://marc.info/?l=bugtraq&m=108084935904110&w=2
- http://security.gentoo.org/glsa/glsa-200403-11.xml
- http://www.debian.org/security/2004/dsa-474
- http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025
- http://www.osvdb.org/5916
- http://www.redhat.com/support/errata/RHSA-2004-133.html
- http://www.redhat.com/support/errata/RHSA-2004-134.html
- http://www.securityfocus.com/bid/9778Exploit, Patch, Vendor Advisory
- http://www.squid-cache.org/Advisories/SQUID-2004_1.txtExploit, Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15366
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941
- ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt
- ftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000838
- http://marc.info/?l=bugtraq&m=108084935904110&w=2
- http://security.gentoo.org/glsa/glsa-200403-11.xml
- http://www.debian.org/security/2004/dsa-474
- http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025
- http://www.osvdb.org/5916
- http://www.redhat.com/support/errata/RHSA-2004-133.html
- http://www.redhat.com/support/errata/RHSA-2004-134.html
- http://www.securityfocus.com/bid/9778Exploit, Patch, Vendor Advisory
- http://www.squid-cache.org/Advisories/SQUID-2004_1.txtExploit, Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15366
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.