High severity · published Mar 22, 2018
CVE-2018-5503
On F5 BIG-IP versions 13.0.0 - 13.1.0.3 or 12.0.0 - 12.1.3.1, TMM may restart when processing a specifically crafted page through a virtual server with an associated PEM policy…
7.5
CVSS
1.7%
EPSS
No
On KEV
Description
On F5 BIG-IP versions 13.0.0 - 13.1.0.3 or 12.0.0 - 12.1.3.1, TMM may restart when processing a specifically crafted page through a virtual server with an associated PEM policy that has content insertion as an action.
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)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BP
BIG-IP (PEM) · F5 Networks, Inc.
13.0.0 - 13.1.0.3; 12.0.0 - 12.1.3.1 · source: vendor
BP
Big-ip Policy Enforcement Manager · F5
12.0.0 before 12.1.3.2; 13.0.0 before 13.1.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-5503
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-5503
Third Party Advisory
http://www.securitytracker.com/id/1040560
Vendor Advisory
https://support.f5.com/csp/article/K54562183
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