BIG-IP DNS TSIG Key vulnerability
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-532.
Summary
When on BIG-IP DNS or BIG-IP LTM enabled with DNS Services License, and a TSIG key is created, it is logged in plaintext in the audit log. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| F5 | BIG-IP | 16.1.0 to before 16.1.4; 15.1.0 to before 15.1.9; 14.1.0 and later; 13.1.0 and later | 17.1.0, 16.1.4, 15.1.9 | Patch available | CNA |
- BIG-IP VendorF5 Affected 16.1.0 to before 16.1.4; 15.1.0 to before 15.1.9; 14.1.0 and later; 13.1.0 and later Fixed in 17.1.0, 16.1.4, 15.1.9 Patch available CNA
CPE configurations NVD · 2
Remediation
- Fix · CNA BIG-IP (F5) Fixed in 17.1.0, 16.1.4, 15.1.9
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
F5 BIG-IP 15.1.9, 16.1.4
9 records Highest priority Priority MEDIUM 3 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2023-23448 BIG-IP Appliance mode external monitor vulnerabilityPriority MEDIUM 40
- TI-2023-21708 BIG-IP IPSEC vulnerabilityPriority MEDIUM 40
- TI-2023-21348 BIG-IP TCP Profile vulnerabilityPriority MEDIUM 40
Timeline
- 2026-10-02 Threatist record created from CVE-2023-41253
- 2026-10-03 Alias added: GHSA-85q5-vwqg-rm58
References
More F5 Big-ip Domain Name System 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-2023-25231 BIG-IP Configuration utility authenticated SQL injection vulnerability KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2023-41253 · CVE Program
- CVE-2023-41253 · NVD
- FIRST EPSS
- GHSA-85q5-vwqg-rm58 · GitHub Advisory Database · CC BY 4.0
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