Bug ID 641137: SSH Proxy does not correctly parse public keys containing comments

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP AFM(all modules)

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Fixed In:
13.0.0

Opened: Jan 24, 2017

Severity: 2-Critical

Related Article: K79347503

Symptoms

The BIG-IP will RST the server side and client side connections upon connection initialization. If you have logging set up, log messages will inform you that the keys were mismatched.

Impact

SSH proxy fails.

Conditions

Configuring the SSH Proxy feature's Real Server Auth public key field, using a public key that contains a comment, such as a trailing "root@myserver.local".

Workaround

Strip any comments from the Real Server Auth public key, such as "root@host.example.com".

Fix Information

SSH Proxy now correctly parses public keys containing comments.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips