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Vulnerability Details : CVE-2008-1611 (1 public exploit)

Stack-based buffer overflow in TFTP Server SP 1.4 for Windows allows remote attackers to cause a denial of service or execute arbitrary code via a long filename in a read or write request.
Publish Date : 2008-04-01 Last Update Date : 2009-03-18
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- CVSS Scores & Vulnerability Types

CVSS Score
10.0
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access Admin
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflow
CWE ID 119

- Products Affected By CVE-2008-1611

# Product Type Vendor Product Version Update Edition Language
1 Application Tftp-server Winagents Tftp Server Sp 1.4 Windows Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Tftp-server Winagents Tftp Server 1

- References For CVE-2008-1611

Exploit! http://www.milw0rm.com/exploits/5314
MILW0RM 5314
http://www.offensive-security.com/0day/sourceforge-tftpd.py.txt
http://www.securityfocus.com/bid/28462
BID 28462 TFTP Server Packet Handling Remote Buffer Overflow Vulnerability Release Date:2009-12-18
http://xforce.iss.net/xforce/xfdb/41496
XF tftpserver-filename-bo(41496)
http://secunia.com/advisories/29508
SECUNIA 29508

- Metasploit Modules Related To CVE-2008-1611

TFTP Server for Windows 1.4 ST WRQ Buffer Overflow
This module exploits a vulnerability found in TFTP Server 1.4 ST. The flaw is due to the way TFTP handles the filename parameter extracted from a WRQ request. The server will append the user-supplied filename to TFTP server binary's path without any bounds checking, and then attempt to check this path with a fopen(). Since this isn't a valid file path, fopen() returns null, which allows the corrupted data to be used in a strcmp() function, causing an access violation. Since the offset is sensitive to how the TFTP server is launched, you must know in advance if your victim machine launched the TFTP as a 'Service' or 'Standalone' , and then manually select your target accordingly. A successful attempt will lead to remote code execution under the context of SYSTEM if run as a service, or the user if run as a standalone. A failed attempt will result a denial-of-service.
Module type : exploit Rank : normal Platforms : Windows


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