Home/CVE/On F5 BIG-IP 13.0.0-13.1.0.5 or 12.0.0-12.1.3.3, malicious root users with access to a VCMP guest can cause a disruption
CVE

CVE-2018-5518

On F5 BIG-IP 13.0.0-13.1.0.5 or 12.0.0-12.1.3.3, malicious root users with access to a VCMP guest can cause a disruption

On F5 BIG-IP 13.0.0-13.1.0.5 or 12.0.0-12.1.3.3, malicious root users with access to a VCMP guest can cause a disruption of service on adjacent VCMP guests running on the same host. Exploiting this vulnerability causes the vCMPd process on the adjacent VCMP guest to restart and produce a core file. This issue is only exploitable on a VCMP guest which is operating in "host-only" or "bridged" mode.

VCMP guests which are "isolated" are not impacted by this issue and do not provide mechanism to exploit the vulnerability. Guests which are deployed in "Appliance Mode" may be impacted however the exploit is not possible from an Appliance Mode guest. To exploit this vulnerability root access on a guest system deployed as "host-only" or "bridged" mode is required.

MEDIUM · CVSS 5.4 EPSS 0.00112
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

26
f5 big-ip local traffic manager>= 12.0.0 and <= 12.1.3
f5 big-ip local traffic manager>= 13.0.0 and <= 13.1.0
f5 big-ip application acceleration manager>= 12.0.0 and <= 12.1.3
f5 big-ip application acceleration manager>= 13.0.0 and <= 13.1.0
f5 big-ip advanced firewall manager>= 12.0.0 and <= 12.1.3
f5 big-ip advanced firewall manager>= 13.0.0 and <= 13.1.0
f5 big-ip analytics>= 12.0.0 and <= 12.1.3
f5 big-ip analytics>= 13.0.0 and <= 13.1.0
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Scoring & Timeline

5.4
MEDIUM · CVSS v3.0 · f5sirt@f5.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 May 2018 · 01:29 PM
CVSS VectorCVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securitytracker.com/id/1040797Third Party AdvisoryVDB Entry
https://support.f5.com/csp/article/K03165684Vendor Advisory
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