Last Modified: Jul 12, 2023
Affected Product(s):
BIG-IP ASM
Fixed In:
14.0.0
Opened: Nov 09, 2017 Severity: 3-Major
A request from UC Browser installed on a mobile device is blocked (got RST packet or captcha).
Requests from mobile UC browser are blocked.
-- ASM or DoS is provisioned. -- Proactive Bot Defense enabled within DoS profile. -- The DoS profile attached to a virtual server.
To work around this issue, you can use either of the following workarounds: -- Disable Proactive Bot Defense. -- Change browser_legit_min_score_drop sys db to be higher value. To do so, use a configuration similar to the following: list sys db dosl7.browser_legit_min_score_drop sys db dosl7.browser_legit_min_score_drop { value "120" }
Mobile UC browser is no longer blocked by Proactive Bot Defense checks.