Path traversal in BIG-IP
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
On BIG-IP, on all versions of 16.1.x, 16.0.x, 15.1.x, 14.1.x, 13.1.x, 12.1.x, and 11.6.x, a directory traversal vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to access arbitrary files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | BIG-IP | All versions of 16.1.x, 16.0.x, 15.1.x, 14.1.x, 13.1.x, 12.1.x, and 11.6.x | — | No fix listed | CNA |
- BIG-IP Vendor— Affected All versions of 16.1.x, 16.0.x, 15.1.x, 14.1.x, 13.1.x, 12.1.x, and 11.6.x Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
Show 1 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* | 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* Versions 11.6.0 – 11.6.5; 12.1.0 – 12.1.6; 13.1.0 – 13.1.4; 14.1.0 – 14.1.4; 15.1.0 – 15.1.3; 16.0.0 – 16.1.0 Vulnerable ·F5
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23043
- 2026-10-03 Alias added: GHSA-9f5g-mr9p-4fxc
References
More F5 Big-ip Access Policy Manager vulnerabilities
- TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2022-01269 Missing authentication in F5 BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05850 Memory corruption in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05845 Server-side request forgery in BIG-IP; BIG-IQ KEVCVSS 3.1CRITICAL 9.8
- TI-2020-04820 Path traversal in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-23043 · CVE Program
- CVE-2021-23043 · NVD
- FIRST EPSS
- GHSA-9f5g-mr9p-4fxc · GitHub Advisory Database · CC BY 4.0
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