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CVE-2022-41800 is a security boundary bypass vulnerability in F5 BIG-IP affecting systems running in Appliance mode. In this configuration, an authenticated user with the Administrator role can use an undisclosed iControl REST endpoint to bypass Appliance mode restrictions and perform actions that should be blocked by that operating mode. The flaw allows an administrator-level user to cross the intended isolation boundary enforced by Appliance mode, undermining the product’s hardening model for restricted administrative operation.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting CVE-2022-41800, a vulnerability in F5 BIG-IP iControl REST. The exploit leverages a newline injection flaw in the RPM .rpmspec file creation process, allowing an authenticated attacker to inject arbitrary shell commands into the %check section of the spec file. The module authenticates to the iControl REST API using provided credentials, creates a malicious spec file via the '/mgmt/shared/iapp/rpm-spec-creator' endpoint, and then triggers the payload by building the RPM through the '/mgmt/shared/iapp/build-package' endpoint. The exploit achieves remote code execution as root on the target system. The code is written in Ruby and is structured as a standard Metasploit module, making it weaponized and easily customizable for different payloads. The only file in the repository is the exploit module itself, and it is fully operational within the Metasploit framework.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A separate F5 BIG-IP issue (fixed as CVE-2022-41800) involving iApp package-building endpoints that can be abused for command execution (RPM spec injection), discussed here as an alternate execution path/variant when chained from CVE-2022-1388-auth bypass context.
A command execution technique in F5 BIG-IP iControl REST involving RPM spec injection via iApp package-building endpoints, enabling arbitrary command execution when reachable (discussed as a related/follow-on issue and fixed under this CVE).
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.