11186 : Quake 2 Server Spoofed userinfo ip Key Access Restriction Bypass
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Disclosure Date


Quake II Server contains a flaw that may allow a malicious user to spoof their IP address. The issue is triggered by sending a specially crafted overly long userinfo string, which gets truncated by the server. It is possible that the flaw may deny moderators the ability to kick the malicious user from the game, resulting in a loss of integrity.


Location: Remote / Network Access
Impact: Loss of Integrity
Exploit: Exploit Unknown


Currently, there are no known upgrades or patches to correct this issue. It is possible to correct the flaw by implementing the following workaround(s): Host only games on trusted networks.


id Software
Quake II Server



  • Richard Stanway - bugtraqsecur1ty.net -

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2005-12-15 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_1 Availability_impact_0


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