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Secunia Advisory SA12238

Thomson SpeedTouch Predictable TCP ISN Generation Weakness
Secunia Advisory SA12238
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Release Date 2004-08-06
   
Popularity 9,049 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Hijacking
Spoofing
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Unpatched
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
Remediation status Secunia VIM
   
Operating System
Thomson SpeedTouch Home ADSL Modem
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2004-0641 CVSS available in Customer Area
  

Description

A security issue has been reported in Thomson SpeedTouch Home ADSL Modem, which potentially can be exploited by malicious people to spoof or hijack connections.

The problem is that TCP ISNs (Initial Sequence Numbers) are generated in a predictable way.

The problem has been reported in firmware version GV8BAA3.270 (1003825). Other versions may also be affected.


Solution
Use another product.

Provided and/or discovered by
Discovered by an anonymous person and reported through iDefense.

Original Advisory
http://www.idefense.com/application/poi/display?id=120&type=vulnerabilities

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Thomson SpeedTouch Predictable TCP ISN Generation Weakness
 
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