Low severity · published Jul 25, 2018
CVE-2018-5538
On F5 BIG-IP DNS 13.1.0-13.1.0.7, 12.1.3-12.1.3.5, DNS Express / DNS Zones accept NOTIFY messages on the management interface from source IP addresses not listed in the 'Allow…
3.7
CVSS
0.8%
EPSS
No
On KEV
Description
On F5 BIG-IP DNS 13.1.0-13.1.0.7, 12.1.3-12.1.3.5, DNS Express / DNS Zones accept NOTIFY messages on the management interface from source IP addresses not listed in the 'Allow NOTIFY From' configuration parameter when the db variable "dnsexpress.notifyport" is set to any value other than the default of "0".
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BD
Big-ip Domain Name System · F5
12.1.3 through 12.1.3.5; after 13.1.0 through 13.1.0.7 · source: NVD
BG
Big-ip Global Traffic Manager · F5
12.1.3 through 12.1.3.5; 13.1.0 through 13.1.0.7 · source: NVD
BL
Big-ip Link Controller · F5
12.1.3 through 12.1.3.5; 13.1.0 through 13.1.0.7 · source: NVD
BL
Big-ip Local Traffic Manager · F5
12.1.3 through 12.1.3.5; 13.1.0 through 13.1.0.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-5538
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-5538
Mitigation
https://support.f5.com/csp/article/K45435121
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