Description
picklescan before 1.0.4 fails to block pkgutil.resolve_name, allowing attackers to bypass the entire blocklist by resolving any dangerous function through indirect REDUCE calls. Remote attackers can invoke any blocked function such as os.system, builtins.exec, or subprocess.call to achieve remote code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| picklescan | picklescan | < 1.0.4 | 1.0.4 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | picklescan | < 1.0.4 | 1.0.4 | GHSA-vvpj-8cmc-gx39 |
References
- GitHub Security Advisory (GHSA-vvpj-8cmc-gx39) vendor-advisory
- VulnCheck Advisory: picklescan - Universal Blocklist Bypass via pkgutil.resolve_name third-party-advisory