High severity · published Apr 30, 2020
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…
8.1
CVSS
0.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BA
Big-ip Analytics · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BA
Big-ip Application Security Manager · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BD
Big-ip Domain Name System · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BF
Big-ip Fraud Protection Service · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BL
Big-ip Link Controller · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.6.1 through 11.6.5.1; 12.1.0 through 12.1.5.1; 13.1.0 through 13.1.3.3; 14.1.0 through 14.1.2.3; 15.0.0 through 15.1.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5876
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-5876
Vendor Advisory
https://support.f5.com/csp/article/K32121038
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