CVE-2017-6168

high-risk
Published 2017-11-17

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.

Do I need to act?

!
75.9% chance of exploitation in next 30 days
EPSS score — higher than 24% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.4/10 High
NETWORK / HIGH complexity

Affected Products (19)

Affected Vendors

F5

References (10)

Third Party Advisory http://www.securityfocus.com/bid/101901
Third Party Advisory http://www.securitytracker.com/id/1039839
Technical Description https://robotattack.org/
Issue Tracking https://support.f5.com/csp/article/K21905460
Third Party Advisory https://www.kb.cert.org/vuls/id/144389
Third Party Advisory http://www.securityfocus.com/bid/101901
Third Party Advisory http://www.securitytracker.com/id/1039839
Technical Description https://robotattack.org/
Issue Tracking https://support.f5.com/csp/article/K21905460
Third Party Advisory https://www.kb.cert.org/vuls/id/144389
61
/ 100
high-risk
Severity 22/34 · High
Exploitability 20/34 · Moderate
Exposure 19/34 · Moderate