Title: Delegate POP Proxy USER Buffer Overflow Vulnerability
Severity: CRITICAL
Description:
DeleGate is an open source proxy server developed by Yutaka Sato. DeleGate allows for proxy of several application protocols, including POP.
DeleGate is reportedly vulnerable to a stack-based buffer overflow that may allow for the execution of arbitrary code. The condition exists if the argument to the 'USER' command is of excessive length.
An attacker with client access to the proxy server (possibly on an internal network), may exploit the vulnerability to gain control of the server. With control of the proxy server, further attacks (such as man-in-the-middle) may be possible.
Additionally, several other buffer overflow conditions in DeleGate reportedly exist.
Affected Products:
- DeleGate DeleGate 7.7.0.0
- DeleGate DeleGate 7.7.1
- DeleGate DeleGate 7.8.0.0
- DeleGate DeleGate 7.8.1
References:
- Yutaka Sato: Delegate Homepage
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