Home/CVE/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 unescap
CVE

CVE-2013-4547

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 unescap

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.

HIGH · CVSS 7.5 EPSS 0.90921
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-116Improper Encoding or Escaping of Output
▤

Affected Products & Versions

6
f5 nginx>= 0.8.41 and < 1.4.4
f5 nginx>= 1.5.0 and <= 1.5.6
suse lifecycle management serverall versions
suse studio onsiteall versions
suse webyastall versions
opensuseall versions
⚠

Public Exploits & PoCs

1
remoteNginx 1.1.17 - URI Processing SecURIty Bypassverified
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighNginx Core Dump
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · secalert@redhat.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD23 Nov 2013 · 06:55 PM
⚑

Vendor Advisories

2
suse-csafopenSUSE-SU-2024:10044-1
suse-csafopenSUSE-SU-2024:11341-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00007.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00084.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00118.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00119.htmlMailing ListThird Party Advisory
http://mailman.nginx.org/pipermail/nginx-announce/2013/000125.htmlMitigationVendor Advisory
http://secunia.com/advisories/55757Third Party Advisory
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