Vulnerability in F5 Big-Ip Afm
CVE-2017-6168
On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.
EPSS: 0.196 (97.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- F5 Big-ip_afm — versions 13.0.0
- F5 Big-ip_analytics — versions 13.0.0
- F5 Big-ip_apm — versions 13.0.0
- F5 Big-ip_application_acceleration_manager — versions 13.0.0
- F5 Big-ip_asm — versions 13.0.0
- F5 Big-ip_link_controller — versions 13.0.0
- F5 Big-ip_ltm — versions 13.0.0
- F5 Big-ip_pem — versions 13.0.0
- F5 Websafe — versions 11.6.2, 13.0.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- f5sirt@f5.com (Technical Description, Third Party Advisory, x_refsource_MISC)
- f5sirt@f5.com (x_refsource_CONFIRM, Mitigation, Issue Tracking, Vendor Advisory)
- f5sirt@f5.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- f5sirt@f5.com (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
- f5sirt@f5.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2017-6168?
- CVE-2017-6168 is a high-severity vulnerability in F5 Big-Ip Afm, classified under Observable Discrepancy. CVSS score: 7.4/10. Published 2017-11-17.
- How severe is CVE-2017-6168?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2017-6168 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.