CVE-2017-6159

moderate-risk
Published 2017-10-27

F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM, Websafe software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1 are vulnerable to a denial of service attack when the MPTCP option is enabled on a virtual server. Data plane is vulnerable when using the MPTCP option of a TCP profile. There is no control plane exposure. An attacker may be able to disrupt services by causing TMM to restart hence temporarily failing to process traffic.

Do I need to act?

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0.91% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (20)

Affected Vendors

F5

References (6)

Third Party Advisory http://www.securityfocus.com/bid/101633
Third Party Advisory http://www.securitytracker.com/id/1039669
Vendor Advisory https://support.f5.com/csp/article/K10002335
Third Party Advisory http://www.securityfocus.com/bid/101633
Third Party Advisory http://www.securitytracker.com/id/1039669
Vendor Advisory https://support.f5.com/csp/article/K10002335
46
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 3/34 · Minimal
Exposure 25/34 · High