Netscape Mail Notification (nsnotify) utility in Netscape Communicator uses IMAP without SSL, even if the user has set a preference for Communicator to use an SSL connection, allowing a remote attacker to sniff usernames and passwords in plaintext.

Netscape Enterprise Server with Directory Indexing enabled allows remote attackers to list server directories via web publishing tags such as ?wp-ver-info and ?wp-cs-dump.

Netscape Enterprise Server with Web Publishing enabled allows remote attackers to list arbitrary directories via a GET request for the /publisher directory, which provides a Java applet that allows the attacker to browse the directories.

Insecure file permissions for Netscape FastTrack Server 2.x, Enterprise Server 2.0, and Proxy Server 2.5 in SCO UnixWare 7.0.x and 2.1.3 allow an attacker to gain root privileges.

security flaw

Netscape Communicator before version 4.73 and Navigator 4.07 do not properly validate SSL certificates, which allows remote attackers to steal information by redirecting traffic from a legitimate web server to their own malicious server, aka the "Acros-Suencksen SSL" vulnerability.

Netscape 4.73 and earlier follows symlinks when it imports a new certificate, which allows local users to overwrite files of the user importing the certificate.

Netscape 4.73 and earlier does not properly warn users about a potentially invalid certificate if the user has previously accepted the certificate for a different web site, which could allow remote attackers to spoof a legitimate web site by compromising that site's DNS information.

Netscape Professional Services FTP Server 1.3.6 allows remote attackers to read arbitrary files via a .. (dot dot) attack.

Netscape Enterprise Server in NetWare 5.1 allows remote attackers to cause a denial of service or execute arbitrary commands via a malformed URL.

security flaw

Netscape Communicator 4.73 and earlier allows remote attackers to cause a denial of service or execute arbitrary commands via a JPEG image containing a comment with an illegal field length of 1.

security flaw

Netscape Communicator and Navigator 4.04 through 4.74 allows remote attackers to read arbitrary files by using a Java applet to open a connection to a URL using the "file", "http", "https", and "ftp" protocols, as demonstrated by Brown Orifice.

Netscape Communicator does not properly prevent a ServerSocket object from being created by untrusted entities, which allows remote attackers to create a server on the victim's system via a malicious applet, as demonstrated by Brown Orifice.

The POP3 server in Netscape Messaging Server 4.15p1 generates different error messages for incorrect user names versus incorrect passwords, which allows remote attackers to determine valid users on the system and harvest email addresses for spam abuse.

Buffer overflow in IMAP server in Netscape Messaging Server 4.15 Patch 2 allows local users to execute arbitrary commands via a long LIST command.

The GUI installation for iCal 2.1 Patch 2 disables access control for the X server using an "xhost +" command, which allows remote attackers to monitor X Windows events and gain privileges.

iCal 2.1 Patch 2 installs many files with world-writeable permissions, which allows local users to modify the iCal configuration and execute arbitrary commands by replacing the iplncal.sh program with a Trojan horse.

csstart program in iCal 2.1 Patch 2 searches for the cshttpd program in the current working directory, which allows local users to gain root privileges by creating a Trojan Horse cshttpd program in a directory and calling csstart from that directory.

csstart program in iCal 2.1 Patch 2 uses relative pathnames to install the libsocket and libnsl libraries, which could allow the icsuser account to gain root privileges by creating a Trojan Horse library in the current or parent directory.

Directory traversal vulnerability in iPlanet Certificate Management System 4.2 and Directory Server 4.12 allows remote attackers to read arbitrary files via a .. (dot dot) attack in the Agent, End Entity, or Administrator services.

Netscape (iPlanet) Certificate Management System 4.2 and Directory Server 4.12 stores the administrative password in plaintext, which could allow local and possibly remote attackers to gain administrative privileges on the server.