VULNERABILITY INTELLIGENCE

CVE-2018-5548

CVSS score6.1 MEDIUM

EPSS probability1.44%

CISA KEVNot currently listed

Published2018-09-13

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

On BIG-IP APM 11.6.0-11.6.3, an insecure AES ECB mode is used for orig_uri parameter in an undisclosed /vdesk link of APM virtual server configured with an access profile, allowing a malicious user to build a redirect URI value using different blocks of cipher texts.

Weakness classification

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Primary references

f5sirt@f5.com — Exploit, Technical Description, Third Party Advisory
f5sirt@f5.com — Third Party Advisory, VDB Entry
f5sirt@f5.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory