// For flags

CVE-2013-4547

Nginx 1.1.17 - URI Processing SecURIty Bypass

Severity Score

9.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

nginx 0.8.41 hasta la versión 1.4.3 y 1.5.x anterior a la versión 1.5.7 permite a atacantes remotos evadir restricciones intencionadas a través de un carácter de espacio sin escape en una URI.

Ivan Fratric of the Google Security Team discovered a bug in nginx, which might allow an attacker to bypass security restrictions in certain configurations by using a specially crafted request, or might have potential other impact.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2013-06-12 CVE Reserved
  • 2013-11-19 First Exploit
  • 2013-11-22 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-116: Improper Encoding or Escaping of Output
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
F5
Search vendor "F5"
Nginx
Search vendor "F5" for product "Nginx"
>= 0.8.41 < 1.4.4
Search vendor "F5" for product "Nginx" and version " >= 0.8.41 < 1.4.4"
-
Affected
F5
Search vendor "F5"
Nginx
Search vendor "F5" for product "Nginx"
>= 1.5.0 <= 1.5.6
Search vendor "F5" for product "Nginx" and version " >= 1.5.0 <= 1.5.6"
-
Affected
Suse
Search vendor "Suse"
Lifecycle Management Server
Search vendor "Suse" for product "Lifecycle Management Server"
1.3
Search vendor "Suse" for product "Lifecycle Management Server" and version "1.3"
-
Affected
Suse
Search vendor "Suse"
Studio Onsite
Search vendor "Suse" for product "Studio Onsite"
1.3
Search vendor "Suse" for product "Studio Onsite" and version "1.3"
-
Affected
Suse
Search vendor "Suse"
Webyast
Search vendor "Suse" for product "Webyast"
1.3
Search vendor "Suse" for product "Webyast" and version "1.3"
-
Affected
Opensuse
Search vendor "Opensuse"
Opensuse
Search vendor "Opensuse" for product "Opensuse"
11.4
Search vendor "Opensuse" for product "Opensuse" and version "11.4"
-
Affected
Opensuse
Search vendor "Opensuse"
Opensuse
Search vendor "Opensuse" for product "Opensuse"
12.2
Search vendor "Opensuse" for product "Opensuse" and version "12.2"
-
Affected
Opensuse
Search vendor "Opensuse"
Opensuse
Search vendor "Opensuse" for product "Opensuse"
12.3
Search vendor "Opensuse" for product "Opensuse" and version "12.3"
-
Affected
Opensuse
Search vendor "Opensuse"
Opensuse
Search vendor "Opensuse" for product "Opensuse"
13.1
Search vendor "Opensuse" for product "Opensuse" and version "13.1"
-
Affected