CVE-2018-5548

Public Exploit

Description

On BIG-IP APM 11.6.0-11.6.3, an insecure AES ECB mode is used for orig_uri parameter in an undisclosed /vdesk link of APM virtual server configured with an access profile, allowing a malicious user to build a redirect URI value using different blocks of cipher texts.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.26%
Vendor Advisory f5.com
Affected: F5 Networks, Inc. BIG-IP APM
Published at:
Updated at:

References

Link Tags
https://support.f5.com/csp/article/K66171422 vendor advisory
http://sbudella.altervista.org/blog/20180911-cve-2018-5548.html third party advisory exploit technical description
http://www.securityfocus.com/bid/105353 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2018-5548?
CVE-2018-5548 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5548?
To fix CVE-2018-5548, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-5548 being actively exploited in the wild?
It is possible that CVE-2018-5548 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-5548?
CVE-2018-5548 affects F5 Networks, Inc. BIG-IP APM.
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