CVE-2017-6145 — iControl REST in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Control

iControl REST in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe 12.0.0 through 12.1.2 and 13.0.0 includes a service to convert authorization BIGIPAuthCookie cookies to X-F5-Auth-Token tokens. This service does not properly re-validate cookies

01What is this vulnerability?

iControl REST in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe 12.0.0 through 12.1.2 and 13.0.0 includes a service to convert authorization BIGIPAuthCookie cookies to X-F5-Auth-Token tokens. This service does not properly re-validate cookies when making that conversion, allowing once-valid but now expired cookies to be converted to valid tokens.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-10-20T15:29:00.457
• Last modified: 2026-05-13T00:24:29.033

09References

• support.f5.com — https://support.f5.com/csp/article/K22317030
• support.f5.com — https://support.f5.com/csp/article/K22317030