What’s Vulnerable › Vulnerabilities

CVE-2006-3747

• Severity: high (CVSS 7.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 97.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2006-07-28 · updated 2026-06-16
• Weakness: CWE-189

Description

Off-by-one error in the ldap scheme handling in the Rewrite module (mod_rewrite) in Apache 1.3 from 1.3.28, 2.0.46 and other versions before 2.0.59, and 2.2, when RewriteEngine is enabled, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted URLs that are not properly handled using certain rewrite rules.

Affected products

• Apache HTTP Server: from 1.3.28 before 1.3.37; from 2.0.46 before 2.0.59; from 2.2.0 before 2.2.3 — fixed in 1.3.37, 2.0.59, 2.2.3
• Canonical Ubuntu Linux: 5.04, 5.10, 6.06
• Debian Linux: 3.1

How to fix

Upgrade to a fixed version: Apache HTTP Server 1.3.37, 2.0.59, 2.2.3. Check the vendor advisory for mitigations.

References

• http://docs.info.apple.com/article.html?artnum=307562
• http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771
• http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01428449
• http://kbase.redhat.com/faq/FAQ_68_8653.shtm
• http://lists.apple.com/archives/security-announce/2008//May/msg00001.html
• http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
• http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/048267.html
• http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/048271.html
• http://lwn.net/Alerts/194228/
• http://marc.info/?l=bugtraq&m=130497311408250&w=2
• http://secunia.com/advisories/21197
• http://secunia.com/advisories/21241

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