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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 13.80% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 96.1% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2004-09-01 04:00Z22 YR AGO
- Last updated
- 2024-08-08 00:10Z2 YR AGO
- Reserved
- 2004-03-03
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 047a95a75e44cb0e22280b2a2fc4d5be91aa44a5b9af03b5da03955655fe9596
05 Affected products
06 References
- ftp.sco.comSCOSA-2005.16ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt
- patches.sgi.com20040404-01-Uftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc
- www.squid-cache.orghttp://www.squid-cache.org/Advisories/SQUID-2004_1.txt
- exchange.xforce.ibmcloud.comsquid-urlregex-acl-bypass(15366)https://exchange.xforce.ibmcloud.com/vulnerabilities/15366
- www.debian.orgDSA-474http://www.debian.org/security/2004/dsa-474
- oval.cisecurity.orgoval:org.mitre.oval:def:877https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877
- www.securityfocus.com9778http://www.securityfocus.com/bid/9778
- www.mandrakesoft.comMDKSA-2004:025http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025
- oval.cisecurity.orgoval:org.mitre.oval:def:941https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941
- www.redhat.comRHSA-2004:133http://www.redhat.com/support/errata/RHSA-2004-133.html
- www.redhat.comRHSA-2004:134http://www.redhat.com/support/errata/RHSA-2004-134.html
- marc.info20040401 [OpenPKG-SA-2004.008] OpenPKG Security Advisory (squid)http://marc.info/?l=bugtraq&m=108084935904110&w=2
- security.gentoo.orgGLSA-200403-11http://security.gentoo.org/glsa/glsa-200403-11.xml
- distro.conectiva.com.brCLA-2004:838http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000838
- www.osvdb.org5916http://www.osvdb.org/5916
07 Fixed in
Debian 12
- squid Fixed in 2.5.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- squid Fixed in 2.5.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- squid Fixed in 2.5.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.