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Category:   Device (Firewall)  >   Palo Alto PAN-OS Vendors:   Palo Alto Networks
Palo Alto PAN-OS RSA TLS Implementation Lets Remote Users Decrypt Data Communicated By the Target System
SecurityTracker Alert ID:  1040149
SecurityTracker URL:  http://securitytracker.com/id/1040149
CVE Reference:   CVE-2017-17841   (Links to External Site)
Date:  Jan 10 2018
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Palo Alto PAN-OS. A remote user can decrypt data communicated by the target system.

A remote user with access to network traffic or that is able to conduct a man-in-the-middle attack can exploit the RSA implementation for TLS sessions and conduct an adaptive chosen ciphertext attack (known as a Bleichenbacher attack) to decrypt and recover plaintext.

This attack method is known as the "ROBOT" attack.

The origin advisory ("Return Of Bleichenbacher's Oracle Threat") is available at:

https://eprint.iacr.org/2017/1189

Hanno Bock, Juraj Somorovsky of Ruhr-Universitat Bochum / Hackmanit GmbH, and Craig Young of Tripwire VERT reported this vulnerability.

Impact:   A remote user with access to network traffic or that is able to conduct a man-in-the-middle attack can decrypt and recover plaintext.
Solution:   The vendor has issued a fix (8.0.7; a fix for 6.1 and 7.1 will be included in the next available maintenance update).

The vendor advisory is available at:

https://securityadvisories.paloaltonetworks.com/Home/Detail/117

Vendor URL:  securityadvisories.paloaltonetworks.com/Home/Detail/117 (Links to External Site)
Cause:   Access control error

Message History:   None.


 Source Message Contents

Subject:  https://securityadvisories.paloaltonetworks.com/Home/Detail/117

 
 


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