CVE-2012-10060
BaseFortify
Publication date: 2025-08-13
Last updated on: 2025-09-24
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| sysax | multi_server | to 5.55 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2012-10060 is a critical stack-based buffer overflow vulnerability in Sysax Multi Server versions prior to 5.55, specifically in its SSH service. When a remote attacker sends an excessively long username during SSH authentication, the server copies this input into a fixed-size stack buffer without proper bounds checking. This overflow allows the attacker to overwrite memory on the stack, leading to remote code execution under the context of the SSH service. The vulnerability affects Windows platforms such as Windows XP SP3 and Windows Server 2003. Exploits use techniques like Structured Exception Handler (SEH) overwrite and Return-Oriented Programming (ROP) chains to bypass protections like Data Execution Prevention (DEP). [1, 2, 3, 5]
How can this vulnerability impact me? :
This vulnerability allows a remote attacker to execute arbitrary code on the affected Sysax SSH server without any authentication or user interaction. Successful exploitation can lead to full system compromise, including unauthorized access, control over the server, and potential disruption of services. Because the exploit runs under the context of the SSH service, it can lead to confidentiality, integrity, and availability impacts, such as data theft, system manipulation, or denial of service. [1, 2, 3, 5]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by checking if your Sysax Multi Server SSH service is running a vulnerable version (prior to 5.55). You can verify the SSH banner for "SSH-2.0-SysaxSSH_1.0" to identify the service. To detect exploitation attempts or test for the vulnerability, you can use tools like Metasploit with the available module for CVE-2012-10060, which sends an overly long username to the SSH service. For manual testing, you could attempt to connect to the SSH service and send an excessively long username during authentication to see if the server crashes or behaves unexpectedly. Example commands include using Metasploit's module `exploit/windows/ssh/sysax_ssh_username` or using Python scripts with Paramiko to send a long username. Network monitoring for unusual SSH authentication attempts with abnormally long usernames can also help detect exploitation attempts. [2, 3, 5]
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to upgrade Sysax Multi Server to version 5.55 or later, where this vulnerability is fixed. If upgrading is not immediately possible, consider disabling the SSH service or restricting access to it via firewall rules to prevent remote exploitation. Monitoring and blocking suspicious SSH login attempts with unusually long usernames can also help reduce risk. Applying network-level protections such as intrusion detection/prevention systems (IDS/IPS) configured to detect buffer overflow attempts targeting SSH username fields may provide additional defense until the patch is applied. [3]