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CVE-2017-6168

UnknownEPSS 21.55%

Last modified

CVE-2017-6168 is a vulnerability of currently unknown severity. 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 estimates a 21.55% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
21.55%

97.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Ltm>= 11.6.0, <= 11.6.2
F5Big-Ip Ltm>= 12.0.0, <= 12.1.2
F5Big-Ip Ltm13.0.0
F5Big-Ip Application Acceleration Manager>= 11.6.0, <= 11.6.2
F5Big-Ip Application Acceleration Manager>= 12.0.0, <= 12.1.2
F5Big-Ip Application Acceleration Manager13.0.0
F5Big-Ip Afm>= 11.6.0, <= 11.6.2
F5Big-Ip Afm>= 12.0.0, <= 12.1.2
F5Big-Ip Afm13.0.0
F5Big-Ip Analytics>= 11.6.0, <= 11.6.2
F5Big-Ip Analytics>= 12.0.0, <= 12.1.2
F5Big-Ip Analytics13.0.0
F5Big-Ip Apm>= 11.6.0, <= 11.6.2
F5Big-Ip Apm>= 12.0.0, <= 12.1.2
F5Big-Ip Apm13.0.0
F5Big-Ip Asm>= 11.6.0, <= 11.6.2
F5Big-Ip Asm>= 12.0.0, <= 12.1.2
F5Big-Ip Asm13.0.0
F5Big-Ip Link Controller>= 11.6.0, <= 11.6.2
F5Big-Ip Link Controller>= 12.0.0, <= 12.1.2
F5Big-Ip Link Controller13.0.0
F5Big-Ip Pem>= 11.6.0, <= 11.6.2
F5Big-Ip Pem>= 12.0.0, <= 12.1.2
F5Big-Ip Pem13.0.0
F5Websafe>= 12.0.0, <= 12.1.2
F5Websafe11.6.2
F5Websafe13.0.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2017-6168?
Severity scoring for CVE-2017-6168 is pending analysis. The EPSS model estimates a 21.55% probability of exploitation in the next 30 days.
How do I fix CVE-2017-6168?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST