Privilege Escalation in BIG-IP iControl REST: Non-Admin Access
CVE-2023-42768 Published on October 10, 2023
BIG-IP iControl REST vulnerability
When a non-admin user has been assigned an administrator role via an iControl REST PUT request and later the user's role is reverted back to a non-admin role via the Configuration utility, tmsh, or iControl REST. BIG-IP non-admin user can still have access to iControl REST admin resource. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability Analysis
CVE-2023-42768 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
Insufficient Session Expiration
According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."
Products Associated with CVE-2023-42768
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Affected Versions
F5 BIG-IP:- Version 17.1.0 and below * is unaffected.
- Version 16.1.0 and below 16.1.4 is affected.
- Version 15.1.0 and below 15.1.9 is affected.
- Version 14.1.0 and below * is affected.
- Version 13.1.0 and below * is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.