// For flags

CVE-2006-5854

Novell Netware Client Print Provider Buffer Overflow Vulnerability

Severity Score

7.5
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Multiple buffer overflows in the Spooler service (nwspool.dll) in Novell Netware Client 4.91 through 4.91 SP2 allow remote attackers to execute arbitrary code via a long argument to the (1) EnumPrinters and (2) OpenPrinter functions.

Múltiples desbordamientos de búfer en el servicio de Spooler(nwspool.dll) en Novell Netware Client 4.91 hasta 4.91 SP2 permite a atacantes remotos ejecutar código de su elección a través de un gran argumentos a las funciones (1) EnumPrinters y (2) OpenPrinter.

This vulnerability allows remote attackers to execute arbitrary code on systems with vulnerable installations of the Novell Netware Client. Authentication is not required to exploit this vulnerability.
The specific flaw exists in a print provider installed by the Netware Client. The nwspool.dll library does not properly handle long arguments to the Win32 EnumPrinters() and OpenPrinter() functions. Exceeding 458 bytes in the first argument to OpenPrinter() or 524 bytes in the second argument to EnumPrinters() results in an exploitable buffer overflow within the Spooler service.
This vulnerability can be exploited remotely via Remote Procedure Call (RPC) requests to the Spooler service. The Spooler exposes the "spoolss" named pipe, which allows an anonymous user to issue certain spooler commands. These include the OpenPrinter() and EnumPrinters() calls required to exploit this vulnerability.

*Credits: Anonymous
CVSS Scores
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
  • 2006-11-10 CVE Reserved
  • 2006-11-21 First Exploit
  • 2006-11-29 CVE Published
  • 2024-08-07 CVE Updated
  • 2024-10-23 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Novell
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Netware Client
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4.91
Search vendor "Novell" for product "Netware Client" and version "4.91"
-
Affected
Novell
Search vendor "Novell"
Netware Client
Search vendor "Novell" for product "Netware Client"
4.91
Search vendor "Novell" for product "Netware Client" and version "4.91"
sp1
Affected
Novell
Search vendor "Novell"
Netware Client
Search vendor "Novell" for product "Netware Client"
4.91
Search vendor "Novell" for product "Netware Client" and version "4.91"
sp2
Affected