Bug ID 426406: "TE" http header with no value will generate a "Header name with no header value" error.

Last Modified: Jul 12, 2023

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

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1

Fixed In:
11.5.0, 11.4.0 HF4, 11.3.0 HF8

Opened: Jul 28, 2013

Severity: 3-Major

Symptoms

You receive blocks on: Header name with no header value Details Header 'TE' has no value

Impact

False positives on the Transfer-Encoding header

Conditions

Enabled blocking ASM violation in the policy HTTP protocol compliance and send traffic with this specific header. This can occur for the Transfer-Encoding header if it is not sent in the HTTP header by the client.

Workaround

None

Fix Information

"TE" HTTP header with no value no longer generates a "Header name with no header value" error.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips