Vulnerabilities > CVE-2009-1262 - USE of Externally-Controlled Format String vulnerability in Fortinet Forticlient 3.0.614

047910
CVSS 7.2 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
low complexity
fortinet
CWE-134
nessus

Summary

Format string vulnerability in Fortinet FortiClient 3.0.614, and possibly earlier, allows local users to execute arbitrary code via format string specifiers in the VPN connection name.

Vulnerable Configurations

Part Description Count
Hardware
Fortinet
1

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Format String Injection
    An attacker includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An attacker can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the attacker can write to the program stack.
  • String Format Overflow in syslog()
    This attack targets the format string vulnerabilities in the syslog() function. An attacker would typically inject malicious input in the format string parameter of the syslog function. This is a common problem, and many public vulnerabilities and associated exploits have been posted.

Nessus

NASL familyWindows
NASL idFORTICLIENT_3_0_616.NASL
descriptionFortiClient, a client-based software solution intended to provide security features for enterprise computers and mobile devices, is installed on the remote Windows host. The installed version does not properly handle format string specifiers within a VPN connection name. A local user may be able to leverage this issue to read and write arbitrary memory with SYSTEM privileges.
last seen2020-06-01
modified2020-06-02
plugin id56049
published2011-09-08
reporterThis script is Copyright (C) 2011-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/56049
titleFortinet FortiClient Crafted VPN Connection Name Handling Local Format String