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Secunia Advisory SA8803

Cisco VPN Client Arbitrary Program Execution Vulnerability
Secunia Advisory SA8803
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Release Date 2003-05-19
   
Popularity 9,104 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Privilege escalation
Where Local system
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
   
Software:
Cisco VPN Client 3.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) No CVE references.
  

Description

A vulnerability has been identified in the Cisco VPN Client, which can be exploited by malicious, local users to escalate their privileges on a vulnerable system.

The vulnerability is caused due to insecure ACLs on the file "vpnclient.ini". The VPN client can be configured to start prior to logon and execute a third party program with SYSTEM privileges. This can be exploited by a malicious user by specifying an arbitrary program in "vpnclient.ini", which will execute it with escalated privileges.


Solution
Modify the ACLs on the file "vpnclient.ini" by removing normal users' write permissions.

Provided and/or discovered by
Nick Staff

Original Advisory
http://neworder.box.sk/explread.php?newsid=8008

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: Cisco VPN Client Arbitrary Program Execution Vulnerability
 
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