Crysis 1.21 and earlier allows remote attackers to obtain sensitive player information such as real IP addresses by sending a keyexchange packet without a previous join packet, which causes Crysis to send a disconnect packet that includes unrelated log information.

References

• https://nvd.nist.gov/vuln/detail/CVE-2008-6737
• https://exchange.xforce.ibmcloud.com/vulnerabilities/43087
• http://aluigi.altervista.org/adv/crysislog-adv.txt
• http://osvdb.org/46260
• http://secunia.com/advisories/30706
• http://www.securityfocus.com/bid/29720