7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.01 Low
EPSS
Percentile
81.8%
Vulnerability Recommended Actions
If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in theVersions known to be not vulnerable column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists.
F5 responds to vulnerabilities in accordance with the Severity values published in the previous table. TheSeverity values and other security vulnerability parameters are defined in SOL4602: Overview of the F5 security vulnerability response policy.
BIG-IP, BIG-IQ, and Enterprise Manager
To mitigate this vulnerability for BIG-IP, BIG-IQ, and Enterprise Manager, you can remove references to the vulnerable function in any configured custom monitors and disable DNS for networks in the /etc/nsswitch.conffile. Additionally, you should permit access to F5 products only over a secure network, and limit login access to trusted users. For more information, refer to SOL13092: Overview of securing access to the BIG-IP system.
ARX
To mitigate this vulnerability for ARX, you can disable DNS for networks in the Name Service Switch configuration.
Supplemental Information
support.f5.com/kb/en-us/solutions/public/0000/100/sol167.html
support.f5.com/kb/en-us/solutions/public/10000/000/sol10025.html
support.f5.com/kb/en-us/solutions/public/12000/700/sol12766.html
support.f5.com/kb/en-us/solutions/public/13000/100/sol13123.html
support.f5.com/kb/en-us/solutions/public/15000/100/sol15106.html
support.f5.com/kb/en-us/solutions/public/15000/100/sol15113.html
support.f5.com/kb/en-us/solutions/public/4000/900/sol4918.html
support.f5.com/kb/en-us/solutions/public/9000/500/sol9502.html
support.f5.com/kb/en-us/solutions/public/9000/900/sol9957.html
support.f5.com/kb/en-us/solutions/public/9000/900/sol9970.html
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.01 Low
EPSS
Percentile
81.8%