IBM Aspera Faspex YAML Deserialization Remote Code Execution
CVE-2022-47986 is a remote code execution vulnerability in IBM Aspera Faspex 4.4.2 Patch Level 1 and earlier. According to the provided content, the flaw is caused by unsafe YAML deserialization reachable through an obsolete API call. A remote attacker can send a specially crafted request to that obsolete API endpoint and trigger deserialization of attacker-controlled data, resulting in arbitrary command or code execution on the Aspera Faspex server. The obsolete API call was removed in Faspex 4.4.2 PL2.
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Impact, mitigation & remediation
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Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
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Exploits
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository provides multiple exploit implementations for CVE-2022-47986, a critical unauthenticated remote code execution (RCE) vulnerability in IBM Aspera Faspex (versions prior to 4.4.2) due to unsafe YAML deserialization in the web interface. The exploit works by sending a specially crafted POST request to the /aspera/faspex/package_relay/relay_package endpoint, injecting a malicious YAML payload in the 'external_emails' field that triggers Ruby object deserialization and arbitrary command execution on the server. The repository includes: - CVE-2022-47986.py: A Python proof-of-concept script that takes a target URL and a command, then sends the exploit payload to execute the command remotely. - CVE-2022-47986.rb: A Ruby script with similar functionality, allowing command execution via command-line arguments. - ibm-aspera-faspex-rce.nse: An Nmap NSE script for automated vulnerability scanning and exploitation, supporting custom command execution. - ibm_aspera_faspex_rce_yaml_deserialization.rb: A Metasploit module enabling weaponized exploitation, including reverse shell payload delivery. The README provides usage instructions for all scripts and modules, as well as references to public advisories and analysis. The exploit is operational and can be used for both detection and exploitation, with the Metasploit module offering advanced payload options. The main attack vector is network-based, targeting the exposed web interface of vulnerable IBM Aspera Faspex servers.
Affected products & vendors
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Recent activity
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A code execution vulnerability in IBM Aspera Faspex that has been exploited in ransomware attacks.
A deserialization vulnerability in IBM Aspera Faspex file sharing software that was used to deploy IceFire ransomware, including a Linux variant, during enterprise intrusions.
A recently disclosed vulnerability rapidly exploited by APT35 for initial access in their campaigns.
A command-execution vulnerability in IBM Aspera Faspex that UNC3569 exploited to run PowerShell, download malicious components, and deploy BEACON.
The version that knows your environment.
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.