Title: Multiple Vendor SSH Server Remote Buffer Overflow Vulnerability
Severity: CRITICAL
Description:
The following SSH server implementations are prone to a remote buffer-overflow vulnerability:
- wodSSHServer is an ActiveX component providing an SSH server implementation
- freeSSHd is an SSH server derived from the wodSSHServer.
This issue occurs because the applications fail to perform boundary checks before copying user-supplied data into finite-sized process buffers.
This issue presents itself when the affected servers attempt to process the key-exchange algorithm string sent prior to the authentication stage of new connections.
A successful attack may facilitate arbitrary code execution. Exploiting this vulnerability may allow an attacker to gain administrative access on targeted computers.
Affected Products:
- WeOnlyDo! wodSSHServer 1.2.7
- WeOnlyDo! wodSSHServer 1.3.3 DEMO
- freeFTPd freeFTPd 1.0.0
- freeFTPd freeFTPd 1.0.1
- freeFTPd freeFTPd 1.0.10
- freeFTPd freeFTPd 1.0.2
- freeFTPd freeFTPd 1.0.3
- freeFTPd freeFTPd 1.0.4
- freeFTPd freeFTPd 1.0.5
- freeFTPd freeFTPd 1.0.6
- freeFTPd freeFTPd 1.0.7
- freeFTPd freeFTPd 1.0.8
- freeFTPd freeFTPd 1.0.9
- freeSSHd freeSSHd 1.0.9
References:
- WeOnlyDo!: wodSSHServer Product Page
- freeFTPd: Changelog
- freeSSHd: freeSSHd Home Page
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