Medium severity · published Dec 24, 2020
CVE-2020-27724
In BIG-IP APM versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, on systems running more than one…
6.5
CVSS
0.9%
EPSS
No
On KEV
Description
In BIG-IP APM versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, on systems running more than one TMM instance, authenticated VPN users may consume excessive resources by sending specially-crafted malicious traffic over the tunnel.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% 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; 12.1.0 through 12.1.5; 13.1.0 before 13.1.3.5; 14.1.0 before 14.1.3.1; 15.0.0 before 15.0.1.4; 15.1.0 before 15.1.0.5; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-27724
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-27724
Vendor Advisory
https://support.f5.com/csp/article/K04518313
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