Arbitrary file upload in F5 Big-Ip Access Policy Manager
CVE-2021-23001
On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, the upload functionality in BIG-IP Advanced WAF and BIG-IP ASM allows an authenticated user to upload files to the BIG-IP system using a call to an undisclosed iControl REST endpoint. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- F5 Big-Ip Access Policy Manager
- F5 Big-Ip Advanced Firewall Manager
- F5 Big-Ip Advanced Web Application Firewall
- F5 Big-Ip Analytics
- F5 Big-Ip Application Acceleration Manager
- F5 Big-Ip Application Security Manager
- F5 Big-Ip Ddos Hybrid Defender
- F5 Big-Ip Domain Name System
- F5 Big-Ip Fraud Protection Service
- F5 Big-Ip Global Traffic Manager
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.f5.com/csp/article/K06440657 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-23001?
- CVE-2021-23001 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.3/10. Published 2021-03-31.
- How severe is CVE-2021-23001?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-23001 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.