What’s Vulnerable › Vulnerabilities

CVE-2013-4547

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 67.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-11-23 · updated 2026-06-16
• Weakness: CWE-116

Description

nginx 0.8.41 through 1.4.3 and 1.5.x before 1.5.7 allows remote attackers to bypass intended restrictions via an unescaped space character in a URI.

Affected products

• nginx: from 0.8.41 before 1.4.4; from 1.5.0 through 1.5.6 — fixed in 1.4.4
• Opensuse: 11.4, 12.2, 12.3, 13.1
• SUSE Lifecycle Management Server: 1.3
• SUSE Studio onsite: 1.3
• SUSE Webyast: 1.3

How to fix

Upgrade to a fixed version: nginx 1.4.4. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00007.html
• http://lists.opensuse.org/opensuse-updates/2013-11/msg00084.html
• http://lists.opensuse.org/opensuse-updates/2013-11/msg00118.html
• http://lists.opensuse.org/opensuse-updates/2013-11/msg00119.html
• http://mailman.nginx.org/pipermail/nginx-announce/2013/000125.html
• http://secunia.com/advisories/55757
• http://secunia.com/advisories/55822
• http://secunia.com/advisories/55825
• http://www.debian.org/security/2012/dsa-2802
• http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00007.html
• http://lists.opensuse.org/opensuse-updates/2013-11/msg00084.html
• http://lists.opensuse.org/opensuse-updates/2013-11/msg00118.html

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