CVE-2003-0993

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2004-03-29 · updated 2026-06-16

Description

mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not properly parse Allow/Deny rules using IP addresses without a netmask, which could allow remote attackers to bypass intended access restrictions.

Affected products

Apache HTTP Server: 1.3, 1.3.1, 1.3.3, 1.3.4, 1.3.6, 1.3.7 (+16)

References

http://frontal2.mandriva.com/security/advisories?name=MDKSA-2004:046
http://issues.apache.org/bugzilla/show_bug.cgi?id=23850
http://marc.info/?l=apache-cvs&m=107869603013722
http://marc.info/?l=bugtraq&m=108437852004207&w=2
http://security.gentoo.org/glsa/glsa-200405-22.xml
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101555-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101841-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-57628-1
http://www.apacheweek.com/features/security-13
http://www.securityfocus.com/bid/9829
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.529643
http://www.trustix.org/errata/2004/0027

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