F5 BIG-IP/BIG-IQ/iWorkflow/Enterprise Manager TMOS Shell access control

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.8 | $5k-$25k | 0.00 |
Summary
A vulnerability categorized as critical has been discovered in F5 BIG-IP, BIG-IQ, iWorkflow and Enterprise Manager. This issue affects some unknown processing of the component TMOS Shell. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2019-6642. The attack can be launched remotely. No exploit exists.
Details
A vulnerability classified as critical was found in F5 BIG-IP, BIG-IQ, iWorkflow and Enterprise Manager (Firewall Software) (affected version unknown). This vulnerability affects an unknown functionality of the component TMOS Shell. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
In BIG-IP 15.0.0, 14.0.0-14.1.0.5, 13.0.0-13.1.1.5, 12.1.0-12.1.4.2, and 11.5.2-11.6.4, BIG-IQ 6.0.0-6.1.0 and 5.1.0-5.4.0, iWorkflow 2.3.0, and Enterprise Manager 3.1.1, authenticated users with the ability to upload files (via scp, for example) can escalate their privileges to allow root shell access from within the TMOS Shell (tmsh) interface. The tmsh interface allows users to execute a secondary program via tools like sftp or scp.
The weakness was disclosed 07/01/2019 (Website). The advisory is shared for download at support.f5.com. This vulnerability was named CVE-2019-6642 since 01/22/2019. The attack can be initiated remotely. The successful exploitation needs a single authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/15/2023). The MITRE ATT&CK project declares the attack technique as T1068.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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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: 8.8VulDB Meta Temp Score: 8.8
VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-264
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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
01/22/2019 🔍07/01/2019 🔍
07/02/2019 🔍
10/15/2023 🔍
Sources
Vendor: f5.comAdvisory: K40378764
Status: Not defined
Confirmation: 🔍
CVE: CVE-2019-6642 (🔍)
GCVE (CVE): GCVE-0-2019-6642
GCVE (VulDB): GCVE-100-137152
Entry
Created: 07/02/2019 06:44Updated: 10/15/2023 09:19
Changes: 07/02/2019 06:44 (54), 06/29/2020 16:54 (1), 10/15/2023 09:19 (3)
Complete: 🔍
Cache ID: 216::103
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