Flawfinder vs MobSF

Flawfinder is a free tool for finding possible security weaknesses in C and C++ source code. It compares source text with a built-in database of functions associated with security problems, generally disregarding comments and strings except for Flawfinder directives. Findings are ordered by risk, which depends on the function and its parameter values; the tool may reduce some false positives when it identifies a construct as not risky. Reports can be generated as text, HTML, CSV, or SARIF. The --patch option narrows findings to changed lines in a unified diff, with a one-line margin. Installation is documented through pip, source downloads, and distribution packages, and the tool requires Python 2.7 or Python 3. The project says it works on Unix-like systems, including GNU/Linux, and on Windows with Cygwin; direct Windows use has also been reported to work. Flawfinder is released under GPL-2.0+. It does not perform control-flow or data-flow analysis, so its output is an aid to review rather than a substitute for security knowledge or human judgment.

MobSF is an open-source framework for automated mobile application security testing and penetration testing. Its static analysis examines source code and binaries for security flaws and misconfigurations before execution. Dynamic analysis runs apps in a controlled sandbox to observe runtime behavior, data flow, and API interactions, while malware analysis looks for suspicious code, permissions, and behavior. Supported inputs include Android, iOS, and Windows packages such as APK, XAPK, IPA, and APPX, plus zipped source code. REST APIs connect MobSF with CI/CD or DevSecOps pipelines; named examples include Jenkins, GitHub Actions, and GitLab CI. Reports include severity, affected files or functions, and remediation suggestions, with HTML, PDF, and JSON export options. MobSF can be installed from GitHub or with Docker, runs on Windows, Linux, or macOS, and can operate offline. The Community Edition is open source under GPL v3 and costs nothing. Dynamic analysis is limited to rooted Android versions 4.1 through 11.0, up to API 30; obfuscation and code protection can limit analysis depth.