| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 9.6 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in F5 BIG-IP. This issue affects some unknown processing of the component CGNAT/NAT64. Executing a manipulation can lead to access control (Config). This vulnerability is tracked as CVE-2016-5745. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.
Details
A vulnerability has been found in F5 BIG-IP (Firewall Software) and classified as very critical. This vulnerability affects an unknown code block of the component CGNAT/NAT64. The manipulation with an unknown input leads to a access control vulnerability (Config). The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 09/28/2016 as 600662 / SOL64743453 as confirmed advisory (Website). The advisory is shared for download at support.f5.com. This vulnerability was named CVE-2016-5745 since 06/23/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/21/2022). The MITRE ATT&CK project declares the attack technique as T1068.
The vulnerability scanner Nessus provides a plugin with the ID 93840 (F5 Networks BIG-IP : NAT64 vulnerability (K64743453)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l.
Upgrading to version 11.2.1 HF16, 11.4.1 HF11, 11.5.1 HF11, 11.5.4 HF2, 11.6.0 HF8, 11.6.1 HF1, 12.0.0 HF4, 12.1.0 HF2 or 12.1.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (93840), SecurityFocus (BID 94240†) and SecurityTracker (ID 1036927†). The entry VDB-92268 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Vendor
Name
License
Website
- Vendor: https://f5.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.8VulDB Meta Temp Score: 9.6
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: ConfigClass: Access control / Config
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 93840
Nessus Name: F5 Networks BIG-IP : NAT64 vulnerability (K64743453)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 841679
OpenVAS Name: F5 BIG-IP - SOL64743453 - NAT64 vulnerability CVE-2016-5745
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: BIG-IP 11.2.1 HF16/11.4.1 HF11/11.5.1 HF11/11.5.4 HF2/11.6.0 HF8/11.6.1 HF1/12.0.0 HF4/12.1.0 HF2/12.1.1
Timeline
06/23/2016 🔍09/28/2016 🔍
09/28/2016 🔍
09/30/2016 🔍
09/30/2016 🔍
10/04/2016 🔍
10/05/2016 🔍
10/05/2016 🔍
09/21/2022 🔍
Sources
Vendor: f5.comAdvisory: 600662 / SOL64743453
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-5745 (🔍)
GCVE (CVE): GCVE-0-2016-5745
GCVE (VulDB): GCVE-100-92272
SecurityFocus: 94240 - F5 BIG-IP LTM Products CVE-2016-5745 Security Bypass Vulnerability
SecurityTracker: 1036927
See also: 🔍
Entry
Created: 09/30/2016 22:15Updated: 09/21/2022 15:12
Changes: 09/30/2016 22:15 (68), 04/29/2019 06:53 (13), 09/21/2022 15:12 (3)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.

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