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Secunia Advisory SA50676

Cisco IOS SSLVPN Denial of Service Vulnerability
Secunia Advisory SA50676
Secunia VIM 4.0 - Free Trial
Release Date 2012-09-19
   
Popularity 1,876 view
Comments 0 comments

Criticality level Less criticalLess critical
Impact DoS
Where From local network
Authentication level This information is available to Secunia VIM customers
   
Report reliability This information is available to Secunia VIM customers
Solution Status Vendor Patch
   
Systems affected This information is available to Secunia VIM customers
Approve distribution This information is available to Secunia VIM customers
Remediation status Secunia CSI, Secunia PSI
Automated scanning Secunia CSI, Secunia PSI
   
Operating System
Cisco IOS 15.2

Secunia CVSS Score This information is available to Secunia VIM Customers
CVE Reference(s) CVE-2012-3923 CVSS score available to Secunia VIM customers
CVE-2012-3924 CVSS score available to Secunia VIM customers
  

Description

A vulnerability has been reported in Cisco IOS, which can be exploited by malicious users to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within SSLVPN when processing outbound ACL rules for an authenticated client and can be exploited to cause a device crash.

Successful exploitation requires an ACL rule on a NAT for the PPP over ATM interface.

The vulnerability is reported in versions prior to 15.2(1)T3.


Solution
Update to version 15.2(1)T3.

Provided and/or discovered by
Reported by the vendor.

Original Advisory
Cisco (CSCte41827, CSCty97961):
http://www.cisco.com/en/US/docs/ios/15_2m_and_t/release/notes/152-1TCAVS.html

Deep Links
Links available to Secunia VIM customers


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 IOS SSLVPN Denial of Service Vulnerability
 
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