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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.196 (97.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.196 · newest: 0.196 · change: +0.001
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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- robotattack.org/ (Technical Description, Third Party Advisory)
- support.f5.com/csp/article/K21905460 (Mitigation, Issue Tracking, Vendor Advisory)
- www.securityfocus.com/bid/101901 (VDB Entry, Third Party Advisory, vdb-entry)
- www.kb.cert.org/vuls/id/144389 (US Government Resource, Third Party Advisory, third-party-advisory)
- www.securitytracker.com/id/1039839 (VDB Entry, Third Party Advisory, vdb-entry)
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.