Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4
Fixed In:
11.6.0, 11.5.1 HF5
Opened: Mar 19, 2014 Severity: 3-Major Related Article:
K15977
If a monitor send or receive string contains a backslash character, this backslash should be escaped (prepended with another backslash) when the monitor is saved through tmsh. If the string in the configuration contains proper backslashes, they will be removed upon save, causing load to fail due to an incorrect number of backslash characters. The error seen will be something similar to the following: 01070642:3: Monitor /Common/myhttp_80 parameter contains unescaped " escape with backslash.
Loading a configuration that has been saved using this version will run into a load failure do to an incorrectly escaped double-quote or backslash.
To trigger this, a monitor must be configured with a send or receive string which uses an escape character and/or double-quote.
Manually modify the configuration to include additional escape characters to allow the configuration to load.
The save mechanism in TMSH has been updated to save the monitor parameter fields in correct format for a subsequent load.