High severity · published Jul 25, 2018
CVE-2018-5541
When F5 BIG-IP ASM 13.0.0-13.1.0.1, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.5.1-11.5.6 is processing HTTP requests, an unusually large number of parameters can cause excessive CPU…
7.5
CVSS
1.8%
EPSS
No
On KEV
Description
When F5 BIG-IP ASM 13.0.0-13.1.0.1, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.5.1-11.5.6 is processing HTTP requests, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Application Security Manager · F5
11.5.1 through 11.5.5; 11.6.1 through 11.6.3; 12.1.0 through 12.1.3; 13.0.0 through 13.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-5541
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-5541
Third Party Advisory
http://www.securityfocus.com/bid/104906
Vendor Advisory
https://support.f5.com/csp/article/K12403422
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