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F5CVE-2018-5518

HistoryMay 02, 2018 - 1:29 p.m.

CVE-2018-5518

2018-05-0213:29:00

web.nvd.nist.gov

f5 big-ip

cve-2018-5518

vcmp guest

disruption of service

vulnerability

exploit

root access

CVSS2

2.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:M/Au:S/C:N/I:N/A:P

CVSS3

5.4

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

AI Score

5.2

Confidence

High

EPSS

Percentile

12.6%

JSON

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.

Affected configurations

Nvd

Node

f5big-ip_local_traffic_managerRange12.0.0–12.1.3

f5big-ip_local_traffic_managerRange13.0.0–13.1.0

Node

f5big-ip_application_acceleration_managerRange12.0.0–12.1.3

f5big-ip_application_acceleration_managerRange13.0.0–13.1.0

Node

f5big-ip_advanced_firewall_managerRange12.0.0–12.1.3

f5big-ip_advanced_firewall_managerRange13.0.0–13.1.0

Node

f5big-ip_analyticsRange12.0.0–12.1.3

f5big-ip_analyticsRange13.0.0–13.1.0

Node

f5big-ip_access_policy_managerRange12.0.0–12.1.3

f5big-ip_access_policy_managerRange13.0.0–13.1.0

Node

f5big-ip_application_security_managerRange12.0.0–12.1.3

f5big-ip_application_security_managerRange13.0.0–13.1.0

Node

f5big-ip_edge_gatewayRange12.0.0–12.1.3

f5big-ip_edge_gatewayRange13.0.0–13.1.0

Node

f5big-ip_global_traffic_managerRange12.0.0–12.1.3

f5big-ip_global_traffic_managerRange13.0.0–13.1.0

Node

f5big-ip_link_controllerRange12.0.0–12.1.3

f5big-ip_link_controllerRange13.0.0–13.1.0

Node

f5big-ip_policy_enforcement_managerRange12.0.0–12.1.3

f5big-ip_policy_enforcement_managerRange13.0.0–13.1.0

Node

f5big-ip_webacceleratorRange12.0.0–12.1.3

f5big-ip_webacceleratorRange13.0.0–13.1.0

Node

f5big-ip_websafeRange12.0.0–12.1.3

f5big-ip_websafeRange13.0.0–13.1.0

Node

f5big-ip_domain_name_systemRange12.0.0–12.1.3

f5big-ip_domain_name_systemRange13.0.0–13.1.0

VendorProductVersionCPE
f5big-ip_local_traffic_manager*cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5big-ip_application_acceleration_manager*cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5big-ip_advanced_firewall_manager*cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5big-ip_analytics*cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5big-ip_access_policy_manager*cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5big-ip_application_security_manager*cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5big-ip_edge_gateway*cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5big-ip_global_traffic_manager*cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5big-ip_link_controller*cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5big-ip_policy_enforcement_manager*cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
f5	big-ip_local_traffic_manager	*	cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::
f5	big-ip_application_acceleration_manager	*	cpe:2.3:a:f5:big-ip_application_acceleration_manager::::::::
f5	big-ip_advanced_firewall_manager	*	cpe:2.3:a:f5:big-ip_advanced_firewall_manager::::::::
f5	big-ip_analytics	*	cpe:2.3:a:f5:big-ip_analytics::::::::
f5	big-ip_access_policy_manager	*	cpe:2.3:a:f5:big-ip_access_policy_manager::::::::
f5	big-ip_application_security_manager	*	cpe:2.3:a:f5:big-ip_application_security_manager::::::::
f5	big-ip_edge_gateway	*	cpe:2.3:a:f5:big-ip_edge_gateway::::::::
f5	big-ip_global_traffic_manager	*	cpe:2.3:a:f5:big-ip_global_traffic_manager::::::::
f5	big-ip_link_controller	*	cpe:2.3:a:f5:big-ip_link_controller::::::::
f5	big-ip_policy_enforcement_manager	*	cpe:2.3:a:f5:big-ip_policy_enforcement_manager::::::::

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CNA Affected

[
  {
    "product": "BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe)",
    "vendor": "F5 Networks, Inc.",
    "versions": [
      {
        "status": "affected",
        "version": "13.0.0-13.1.0.5"
      },
      {
        "status": "affected",
        "version": "12.0.0-12.1.3.3"
      }
    ]
  }
]

References

www.securitytracker.com/id/1040797

support.f5.com/csp/article/K03165684

CVSS2

2.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:M/Au:S/C:N/I:N/A:P

CVSS3

5.4

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

AI Score

5.2

Confidence

High

EPSS

Percentile

12.6%

JSON

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