Vulnerabilities > CVE-2007-5767 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Novell Bordermanager

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
novell
CWE-119
critical

Summary

Heap-based buffer overflow in the Client Trust application (clntrust.exe) in Novell BorderManager 3.8 before Update 1.5 allows remote attackers to execute arbitrary code via a validation request in which the Novell tree name is not properly delimited with a wide-character backslash or NULL character.

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.

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 26285 CVE(CAN) ID: CVE-2007-5767 Novell BorderManager是Internet防火墙、VPN等安全工具套件。 Novell BorderManager的Client Trust应用实现上存在堆溢出漏洞,远程攻击者可能利用此漏洞控制服务器。 Novell BorderManager中默认监听于UDP 3024 端口的Client Trust应用(clntrust.exe)没有正确的验证用户请求,Client Trust进程会一直拷贝用户提供的Novell树名称,直到遇到宽字符反斜杠或空字符。如果数据中没有上述字符的话,进程会拷贝过多的数据,然后在调用wsprintfA时会溢出静态缓冲区。 Novell BorderManager 3.8 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://download.novell.com/Download?buildid=AuOWp2Xsvmc~" target="_blank">http://download.novell.com/Download?buildid=AuOWp2Xsvmc~</a>
idSSV:2380
last seen2017-11-19
modified2007-11-02
published2007-11-02
reporterRoot
titleNovell BorderManager Client Trust进程堆溢出漏洞