Last Modified: Sep 28, 2023
Affected Product(s):
BIG-IP TMOS
Fixed In:
15.1.4
Opened: Apr 27, 2021 Severity: 2-Critical
After the device reboots, the LTM logs time stamp provided for "boot_marker" and "Shutdown cleanly" are of two different formats.
The time stamp format of some log entries may appear in ISO date format and thus not be consistent with other log entries when ISO date format is disabled.
This may occur when ISO date format is disabled (tmsh modify sys syslog iso-date disable). The "boot_marker" log entries cannot be configured with regards to ISO date format, and so are always written in ISO date format to ensure ICSA compliance. When ISO date format is enabled (tmsh modify sys syslog iso-date enable), all log entries use ISO date format and thus match the "boot_marker" log entries.
The time stamp format of "boot_marker" log entries is expected to always appear in ISO date format.
The boot marker log entry now uses a non-ISO time stamp format with this fix in place.
The boot marker log entry now uses a consistent time stamp when ISO date format is disabled, but no longer complies with ISO date format when ISO date format is enabled, breaking ICSA compliance.