CVE-2018-5548 json
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 co…
published 2018-09-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17317
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.44% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- sbudella.altervista.org http://sbudella.altervista.org/blog/20180911-cve-2018-5548.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- F5 Networks, Inc. BIG-IP APM
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
sbudella.altervista.org
/blog/20180911-cve-2018-5548.html
exploit, technical-description, third-party-advisory
-
support.f5.com
/csp/article/K66171422
vendor-advisory
-
securityfocus.com
/bid/105353
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-5548
- NVD CVE-2018-5548
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.