Internet Security Systems (ISS) X-Force has discovered several vulnerabilities in Cisco Series 700 routers. The Cisco 700 series is popular among corporate users and telecommuters. It is used to support networks in small offices or home offices. It is also recommended by Internet Service Providers (ISPs) for personal ISDN connectivity. Remote attackers may issue commands to the router without authentication. Remote attackers may also deny network connectivity by forcing the router to reboot.
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ISS X-Force has discovered a buffer overflow exploit against Microsoft Exchange's LDAP (Lightweight Directory Access Protocol) server which allows read access to the Exchange server directory by using an LDAP client. This buffer overflow consists of a malformed bind request that overflows the buffer and can execute arbitrary code. This attack can also cause the Exchange LDAP service to crash. This vulnerability exists in Microsoft Exchange Server version 5.5.
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