CVE-2018-5502

moderate-risk
Published 2018-03-22

On F5 BIG-IP versions 13.0.0 - 13.1.0.3, attackers may be able to disrupt services on the BIG-IP system with maliciously crafted client certificate. This vulnerability affects virtual servers associated with Client SSL profile which enables the use of client certificate authentication. Client certificate authentication is not enabled by default in Client SSL profile. There is no control plane exposure.

Do I need to act?

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0.42% 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
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (13)

Affected Vendors

F5

References (4)

Third Party Advisory http://www.securitytracker.com/id/1040561
Vendor Advisory https://support.f5.com/csp/article/K43121447
Third Party Advisory http://www.securitytracker.com/id/1040561
Vendor Advisory https://support.f5.com/csp/article/K43121447
45
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 2/34 · Minimal
Exposure 17/34 · Moderate