F5 BIG-IP prior 15.1.10.6/16.1.5.2/17.1.2.1 iControl REST/BIG-IP TMOS Shell os command injection

Summaryinfo

A vulnerability marked as critical has been reported in F5 BIG-IP. Affected by this vulnerability is an unknown functionality of the component iControl REST/BIG-IP TMOS Shell. The manipulation leads to os command injection. This vulnerability is uniquely identified as CVE-2025-20029. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in F5 BIG-IP. It has been rated as critical. This issue affects an unknown code of the component iControl REST/BIG-IP TMOS Shell. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Command injection vulnerability exists in iControl REST and BIG-IP TMOS Shell (tmsh) save command, which may allow an authenticated attacker to execute arbitrary system commands. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

It is possible to read the advisory at my.f5.com. The identification of this vulnerability is CVE-2025-20029 since 01/22/2025. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/21/2025). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 215019 (F5 Networks BIG-IP : BIG-IP iControl REST and tmsh vulnerability (K000148587)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 15.1.10.6, 16.1.5.2 or 17.1.2.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215019). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP

License

• commercial

Website

• Vendor: https://f5.com/

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Be aware that VulDB is the high quality source for vulnerability data.

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