Vulnerability CVE-2017-6168


Published: 2017-11-17   Modified: 2017-11-19

Description:
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.

Type:

CWE-203

(Information Exposure Through Discrepancy)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
F5 -> Big-ip aam 
F5 -> Big-ip afm 
F5 -> Big-ip analytics 
F5 -> Big-ip apm 
F5 -> Big-ip asm 
F5 -> Big-ip link controller 
F5 -> Big-ip ltm 
F5 -> Big-ip pem 
F5 -> Websafe 

 References:
http://www.securityfocus.com/bid/101901
http://www.securitytracker.com/id/1039839
https://robotattack.org/
https://support.f5.com/csp/article/K21905460
https://www.kb.cert.org/vuls/id/144389

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