Vulnerabilities > CVE-2008-0639 - Buffer Errors vulnerability in Novell Client 4.91

047910
CVSS 10.0 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
low complexity
microsoft
novell
CWE-119
critical
NVD
Published: 2008-02-13
Updated: 2018-10-15

Summary

Stack-based buffer overflow in the EnumPrinters function in the Spooler service (nwspool.dll) in Novell Client 4.91 SP2, SP3, and SP4 for Windows allows remote attackers to execute arbitrary code via a crafted RPC request, aka Novell bug 353138, a different vulnerability than CVE-2006-5854. NOTE: this issue exists because of an incomplete fix for CVE-2007-6701.

Vulnerable Configurations

Part Description Count
OS
Microsoft
1
Application
Novell
3

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Saint

bid27741
descriptionNovell Client nwspool.dll EnumPrinters buffer overflow
idprinter_novellclient3
osvdb41510
titlenovell_client_nwspool_enumprinters
typeremote

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 27741 CVE(CAN) ID: CVE-2008-0639 Novell Client是允许NetWare连接到Windows的工作站软件。 Novell Client的Spooler服务（nwspool.dll）负责处理通过spoolss命名管道所提交的RPC请求，该DLL所暴露的EnumPrinters函数存在逻辑错误，允许远程攻击者通过提交恶意的RPC请求触发栈溢出，导致执行任意指令。 出现这个漏洞是由于没有正确地修复CVE-2007-6701漏洞。 Novell Client 4.91 SP4 Novell Client 4.91 SP3 Novell Client 4.91 SP2 厂商补丁： Novell ------ 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： <a href=http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5008300.html target=_blank>http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5008300.html</a>
idSSV:2945
last seen2017-11-19
modified2008-02-26
published2008-02-26
reporterRoot
titleNovell客户端nwspool.dll EnumPrinters RPC请求远程栈溢出漏洞

References