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CVE-2019-6642

HIGHCVSS 8.8/10EPSS 1.82%

Last modified

CVE-2019-6642 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.82% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.82%

76.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 11.5.2, <= 11.6.4
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.4.2
F5Big-Ip Access Policy Manager>= 13.0.0, <= 13.1.1.5
F5Big-Ip Access Policy Manager>= 14.0.0, <= 14.1.0.5
F5Big-Ip Access Policy Manager15.0.0
F5Big-Ip Advanced Firewall Manager>= 11.5.2, <= 11.6.4
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.4.2
F5Big-Ip Advanced Firewall Manager>= 13.0.0, <= 13.1.1.5
F5Big-Ip Advanced Firewall Manager>= 14.0.0, <= 14.1.0.5
F5Big-Ip Advanced Firewall Manager15.0.0
F5Big-Ip Application Acceleration Manager>= 11.5.2, <= 11.6.4
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.4.2
F5Big-Ip Application Acceleration Manager>= 13.0.0, <= 13.1.1.5
F5Big-Ip Application Acceleration Manager>= 14.0.0, <= 14.1.0.5
F5Big-Ip Application Acceleration Manager15.0.0
F5Big-Ip Link Controller>= 11.5.2, <= 11.6.4
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.4.2
F5Big-Ip Link Controller>= 13.0.0, <= 13.1.1.5
F5Big-Ip Link Controller>= 14.0.0, <= 14.1.0.5
F5Big-Ip Link Controller15.0.0
F5Big-Ip Policy Enforcement Manager>= 11.5.2, <= 11.6.4
F5Big-Ip Policy Enforcement Manager>= 12.1.0, <= 12.1.4.2
F5Big-Ip Policy Enforcement Manager>= 13.0.0, <= 13.1.1.5
F5Big-Ip Policy Enforcement Manager>= 14.0.0, <= 14.1.0.5
F5Big-Ip Policy Enforcement Manager15.0.0
F5Big-Ip Webaccelerator>= 11.5.2, <= 11.6.4
F5Big-Ip Webaccelerator>= 12.1.0, <= 12.1.4.2
F5Big-Ip Webaccelerator>= 13.0.0, <= 13.1.1.5
F5Big-Ip Webaccelerator>= 14.0.0, <= 14.1.0.5
F5Big-Ip Webaccelerator15.0.0
F5Big-Ip Application Security Manager>= 11.5.2, <= 11.6.4
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.4.2
F5Big-Ip Application Security Manager>= 13.0.0, <= 13.1.1.5
F5Big-Ip Application Security Manager>= 14.0.0, <= 14.1.0.5
F5Big-Ip Application Security Manager15.0.0
F5Big-Ip Local Traffic Manager>= 11.5.2, <= 11.6.4
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.4.2
F5Big-Ip Local Traffic Manager>= 13.0.0, <= 13.1.1.5
F5Big-Ip Local Traffic Manager>= 14.0.0, <= 14.1.0.5
F5Big-Ip Local Traffic Manager15.0.0
F5Big-Ip Fraud Protection Service>= 11.5.2, <= 11.6.4
F5Big-Ip Fraud Protection Service>= 12.1.0, <= 12.1.4.2
F5Big-Ip Fraud Protection Service>= 13.0.0, <= 13.1.1.5
F5Big-Ip Fraud Protection Service>= 14.0.0, <= 14.1.0.5
F5Big-Ip Fraud Protection Service15.0.0
F5Big-Ip Global Traffic Manager>= 11.5.2, <= 11.6.4
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.4.2
F5Big-Ip Global Traffic Manager>= 13.0.0, <= 13.1.1.5
F5Big-Ip Global Traffic Manager>= 14.0.0, <= 14.1.0.5
F5Big-Ip Global Traffic Manager15.0.0

Showing 50 of 69 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-6642?
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.
How severe is CVE-2019-6642?
CVE-2019-6642 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.82% probability of exploitation in the next 30 days.
How do I fix CVE-2019-6642?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-6642?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST