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HIGH · 8.1

CVE-2020-5876

On BIG-IP 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, a race condition exists where mcpd and other processes may make unencrypted connection attempts to a ...

Vulnerability Description

On BIG-IP 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, a race condition exists where mcpd and other processes may make unencrypted connection attempts to a new configuration sync peer. The race condition can occur when changing the ConfigSync IP address of a peer, adding a new peer, or when the Traffic Management Microkernel (TMM) first starts up.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
F5Big-Ip Access Policy Manager>= 11.6.1, <= 11.6.5.1
F5Big-Ip Advanced Firewall Manager>= 11.6.1, <= 11.6.5.1
F5Big-Ip Analytics>= 11.6.1, <= 11.6.5.1
F5Big-Ip Application Acceleration Manager>= 11.6.1, <= 11.6.5.1
F5Big-Ip Application Security Manager>= 11.6.1, <= 11.6.5.1
F5Big-Ip Domain Name System>= 11.6.1, <= 11.6.5.1
F5Big-Ip Fraud Protection Service>= 11.6.1, <= 11.6.5.1
F5Big-Ip Global Traffic Manager>= 11.6.1, <= 11.6.5.1
F5Big-Ip Link Controller>= 11.6.1, <= 11.6.5.1
F5Big-Ip Local Traffic Manager>= 11.6.1, <= 11.6.5.1
F5Big-Ip Policy Enforcement Manager>= 11.6.1, <= 11.6.5.1

Related Weaknesses (CWE)

CWE-362CWE-319

References

FAQ

What is CVE-2020-5876?

CVE-2020-5876 is a vulnerability with a CVSS score of 8.1 (HIGH). On BIG-IP 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, a race condition exists where mcpd and other processes may make unencrypted connection attempts to a ...

How severe is CVE-2020-5876?

CVE-2020-5876 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-5876?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager.