// For flags

CVE-2012-5533

lighttpd 1.4.31 - Denial of Service (PoC)

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

3
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the "Connection: TE,,Keep-Alive" header.

La función http_request_split_value en request.c en lighttpd en versiones anteriores a 1.4.32 permite a atacantes remotos provocar una denegación de servicio (bucle infinito) a través de una petición con una cabecera que contiene un token vacío, tal como se demuestra utilizando la cabecera "Connection: TE,,Keep-Alive".

A potential security vulnerabilities have been identified with HP Remote Device Access: Virtual Customer Access System (vCAS) running lighttpd. These vulnerabilities could be exploited remotely resulting in disclosure of information, elevation of privilege, SQL injection, or to create a Denial of Service (DoS). These vulnerabilities include the SSLv3 vulnerability known as "Padding Oracle on Downgraded Legacy Encryption" also known as "Poodle", which could be exploited remotely to allow disclosure of information. SSLv3 is enabled by default in the lighttpd based vCAS Web Server. Revision 1 of this advisory.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2012-10-24 CVE Reserved
  • 2012-11-22 First Exploit
  • 2012-11-24 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-399: Resource Management Errors
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Lighttpd
Search vendor "Lighttpd"
Lighttpd
Search vendor "Lighttpd" for product "Lighttpd"
1.4.31
Search vendor "Lighttpd" for product "Lighttpd" and version "1.4.31"
-
Affected
Lighttpd
Search vendor "Lighttpd"
Lighttpd
Search vendor "Lighttpd" for product "Lighttpd"
1.4.32
Search vendor "Lighttpd" for product "Lighttpd" and version "1.4.32"
-
Affected