CVE-2020-5902
F5 — F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability
F5 · CWE-22 — Path traversal · in CISA KEV since 2021-11-03
EVRS 94 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 17 of 2,960 tracked
Why it scores 94
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and associated with known ransomware campaigns.
- CISA KEVApplied
- RansomwareApplied
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
big-ip access policy manager: update to 11.6.5.2 or later | big-ip access policy manager: update to 12.1.5.2 or later | big-ip access policy manager: update to 13.1.3.4 or later | big-ip access policy manager: update to 14.1.2.6 or later | big-ip access policy manager: update to a version newer than 15.0.1.4 | big-ip access policy manager: update to 15.1.0.4 or later
Affected versions
- big-ip access policy manager
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 <= 15.0.1.4>= 15.1.0 < 15.1.0.4 - big-ip advanced firewall manager
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 < 15.0.1.4>= 15.1.0 < 15.1.0.4 - big-ip advanced web application firewall
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 < 15.0.1.4>= 15.1.0 < 15.1.0.4 - big-ip analytics
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 < 15.0.1.4>= 15.1.0 < 15.1.0.4 - big-ip application acceleration manager
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 < 15.0.1.4>= 15.1.0 < 15.1.0.4 - big-ip application security manager
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 < 15.0.1.4>= 15.1.0 < 15.1.0.4 - big-ip ddos hybrid defender
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 < 15.0.1.4>= 15.1.0 < 15.1.0.4 - big-ip domain name system
>= 11.6.1 < 11.6.5.2>= 12.1.0 < 12.1.5.2>= 13.1.0 < 13.1.3.4>= 14.1.0 < 14.1.2.6>= 15.0.0 < 15.0.1.4>= 15.1.0 < 15.1.0.4
+6 more affected products; see the full list at NVD.
Remediation
Apply updates per vendor instructions.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.999 (99.99th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Known | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2022-05-03 · KEV since 2021 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | Public module exists | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by f5. | Listed | ENISA EUVD |
Description
NVDIn BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.
What CISA says to do
Public module
Metasploit lists a public average-rank module for this CVE: F5 BIG-IP TMUI Directory Traversal and File Upload RCE (linux/http/f5_bigip_tmui_rce_cve_2020_5902). A module existing is not the same as active exploitation; see metasploit.com.