7.5
HIGH
CVE-2004-0189
Squid URL Decoding NULL Byte Remote Bypass ACL Vulnerability
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.

INFO

Published Date :

March 15, 2004, 5 a.m.

Last Modified :

Nov. 20, 2024, 11:47 p.m.

Remotely Exploitable :

Yes !

Impact Score :

6.4

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2004-0189 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Squid squid
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2004-0189.

URL Resource
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/9778 Exploit Patch Vendor Advisory
http://www.squid-cache.org/Advisories/SQUID-2004_1.txt Exploit 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/9778 Exploit Patch Vendor Advisory
http://www.squid-cache.org/Advisories/SQUID-2004_1.txt Exploit 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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2004-0189 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2004-0189 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 10, 2017

    Action Type Old Value New Value
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:877 [Tool Signature, US Government Resource]
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:941 [Tool Signature, US Government Resource]
    Removed Reference http://xforce.iss.net/xforce/xfdb/15366 [Vendor Advisory]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/15366 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 18, 2016

    Action Type Old Value New Value
    Removed Reference http://marc.theaimsgroup.com/?l=bugtraq&m=108084935904110&w=2
    Added Reference http://marc.info/?l=bugtraq&m=108084935904110&w=2
  • CVE Modified by [email protected]

    Sep. 17, 2016

    Action Type Old Value New Value
    Changed 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") characterm, which causes Squid to use only a portion of the requested URL when comparing it against the access control lists. 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.
  • Initial Analysis by [email protected]

    Jan. 01, 2004

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2004-0189 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2004-0189 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.71 }} -0.27%

score

0.89122

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability