Horizon Alert
Summary of the vulnerability and why it matters
Fortra GoAnywhere MFT contains a pre-authentication command injection vulnerability. This flaw occurs when the License Response Servlet deserializes an arbitrary attacker-controlled object. The potential impact could allow an attacker to gain unauthorized access to systems and data.
- Vulnerable component: License Response Servlet
- Core weakness: Arbitrary object deserialization
- Main business impact: Unauthorized system access
Attack Path
How an attacker could exploit the issue
This vulnerability allows an attacker to execute arbitrary commands on the server. An attacker can exploit this by sending a crafted request to the affected product. Successful exploitation can lead to the compromise of the server and its data.
- Network exposure required
- Attacker accesses License Response Servlet
- Triggering deserialization allows command execution
Live Threat
Current exploitation, exposure, and threat context
A pre-authentication command injection vulnerability exists in Fortra GoAnywhere MFT. This allows an attacker to execute arbitrary commands by deserializing an attacker-controlled object. The issue was addressed in version 7.1.2.
- Likely attacker skill level: High.
- Required access or conditions: Network access, authenticated user.
- Business risk or urgency: High.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
An organization facing this vulnerability should act to understand its exposure and mitigate the risk. Initial steps involve identifying all instances of the affected software within the environment. Subsequently, actions should be taken to limit the potential for exploitation, such as restricting network access to the application. The vendor's provided solution should then be implemented, followed by verification that the fix is effective and that the system is functioning correctly. Ongoing vigilance through monitoring is also crucial to detect any related malicious activity.
- Identify exposed software assets.
- Reduce network exposure.
- Apply vendor fix and validate.
- Monitor for related issues.
