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CVE-2018-5520

UnknownEPSS 1.05%

Last modified

CVE-2018-5520 is a vulnerability of currently unknown severity. On an F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.1, or 11.2.1-11.6.3.1 system configured in Appliance mode, the TMOS Shell (tmsh) may allow an administrative user to use the dig utility to gain unauthorized access to file system resources.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

On an F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.1, or 11.2.1-11.6.3.1 system configured in Appliance mode, the TMOS Shell (tmsh) may allow an administrative user to use the dig utility to gain unauthorized access to file system resources.

Metrics

EPSS Probability
1.05%

60.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Local Traffic Manager>= 11.2.1, <= 11.6.3
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Local Traffic Manager>= 13.0.0, <= 13.1.0
F5Big-Ip Application Acceleration Manager>= 11.2.1, <= 11.6.3
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Application Acceleration Manager>= 13.0.0, <= 13.1.0
F5Big-Ip Advanced Firewall Manager>= 11.2.1, <= 11.6.3
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Advanced Firewall Manager>= 13.0.0, <= 13.1.0
F5Big-Ip Analytics>= 11.2.1, <= 11.6.3
F5Big-Ip Analytics>= 12.1.0, <= 12.1.3
F5Big-Ip Analytics>= 13.0.0, <= 13.1.0
F5Big-Ip Access Policy Manager>= 11.2.1, <= 11.6.3
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Access Policy Manager>= 13.0.0, <= 13.1.0
F5Big-Ip Application Security Manager>= 11.2.1, <= 11.6.3
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Application Security Manager>= 13.0.0, <= 13.1.0
F5Big-Ip Edge Gateway>= 11.2.1, <= 11.6.3
F5Big-Ip Edge Gateway>= 12.1.0, <= 12.1.3
F5Big-Ip Edge Gateway>= 13.0.0, <= 13.1.0
F5Big-Ip Global Traffic Manager>= 11.2.1, <= 11.6.3
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Global Traffic Manager>= 13.0.0, <= 13.1.0
F5Big-Ip Link Controller>= 11.2.1, <= 11.6.3
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.3
F5Big-Ip Link Controller>= 13.0.0, <= 13.1.0
F5Big-Ip Policy Enforcement Manager>= 11.2.1, <= 11.6.3
F5Big-Ip Policy Enforcement Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Policy Enforcement Manager>= 13.0.0, <= 13.1.0
F5Big-Ip Webaccelerator>= 11.2.1, <= 11.6.3
F5Big-Ip Webaccelerator>= 12.1.0, <= 12.1.3
F5Big-Ip Webaccelerator>= 13.0.0, <= 13.1.0
F5Big-Ip Websafe>= 11.2.1, <= 11.6.3
F5Big-Ip Websafe>= 12.1.0, <= 12.1.3
F5Big-Ip Websafe>= 13.0.0, <= 13.1.0
F5Big-Ip Domain Name System>= 11.2.1, <= 11.6.3
F5Big-Ip Domain Name System>= 12.1.0, <= 12.1.3
F5Big-Ip Domain Name System>= 13.0.0, <= 13.1.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-5520?
On an F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.1, or 11.2.1-11.6.3.1 system configured in Appliance mode, the TMOS Shell (tmsh) may allow an administrative user to use the dig utility to gain unauthorized access to file system resources.
How severe is CVE-2018-5520?
Severity scoring for CVE-2018-5520 is pending analysis. The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.
How do I fix CVE-2018-5520?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST