ID CVE-2004-0189
Summary 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.
References
Vulnerable Configurations
  • cpe:2.3:a:squid:squid:2.0_patch2:*:*:*:*:*:*:*
    cpe:2.3:a:squid:squid:2.0_patch2:*:*:*:*:*:*:*
  • cpe:2.3:a:squid:squid:2.1_patch2:*:*:*:*:*:*:*
    cpe:2.3:a:squid:squid:2.1_patch2:*:*:*:*:*:*:*
  • cpe:2.3:a:squid:squid:2.3_stable5:*:*:*:*:*:*:*
    cpe:2.3:a:squid:squid:2.3_stable5:*:*:*:*:*:*:*
  • cpe:2.3:a:squid:squid:2.4:*:*:*:*:*:*:*
    cpe:2.3:a:squid:squid:2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:squid:squid:2.4_stable7:*:*:*:*:*:*:*
    cpe:2.3:a:squid:squid:2.4_stable7:*:*:*:*:*:*:*
  • cpe:2.3:a:squid:squid:2.5_stable3:*:*:*:*:*:*:*
    cpe:2.3:a:squid:squid:2.5_stable3:*:*:*:*:*:*:*
  • cpe:2.3:a:squid:squid:2.5_stable4:*:*:*:*:*:*:*
    cpe:2.3:a:squid:squid:2.5_stable4:*:*:*:*:*:*:*
CVSS
Base: 7.5 (as of 10-10-2017 - 01:30)
Impact:
Exploitability:
CWE NVD-CWE-Other
CAPEC
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:P/I:P/A:P
oval via4
  • accepted 2010-09-20T04:00:45.311-04:00
    class vulnerability
    contributors
    • name Jay Beale
      organization Bastille Linux
    • name Thomas R. Jones
      organization Maitreya Security
    • name Jonathan Baker
      organization The MITRE Corporation
    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.
    family unix
    id oval:org.mitre.oval:def:877
    status accepted
    submitted 2004-04-07T12:00:00.000-04:00
    title Red Hat Squid ACL Bypass Vulnerability
    version 41
  • accepted 2010-09-20T04:00:46.445-04:00
    class vulnerability
    contributors
    • name Jay Beale
      organization Bastille Linux
    • name Thomas R. Jones
      organization Maitreya Security
    • name Jonathan Baker
      organization The MITRE Corporation
    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.
    family unix
    id oval:org.mitre.oval:def:941
    status accepted
    submitted 2004-05-10T12:00:00.000-04:00
    title Red Hat Enterprise 3 Squid ACL Bypass Vulnerability
    version 41
redhat via4
advisories
  • rhsa
    id RHSA-2004:133
  • rhsa
    id RHSA-2004:134
rpms
  • squid-7:2.5.STABLE3-5.3E
  • squid-debuginfo-7:2.5.STABLE3-5.3E
refmap via4
bid 9778
bugtraq 20040401 [OpenPKG-SA-2004.008] OpenPKG Security Advisory (squid)
conectiva CLA-2004:838
confirm http://www.squid-cache.org/Advisories/SQUID-2004_1.txt
debian DSA-474
gentoo GLSA-200403-11
mandrake MDKSA-2004:025
osvdb 5916
sco SCOSA-2005.16
sgi 20040404-01-U
xf squid-urlregex-acl-bypass(15366)
Last major update 10-10-2017 - 01:30
Published 15-03-2004 - 05:00
Last modified 10-10-2017 - 01:30
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