The default encryption method of PcAnywhere 9.x uses weak encryption, which allows remote attackers to sniff and decrypt PcAnywhere or NT domain accounts.
Symantec pcAnywhere through 12.5.3, Altiris IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), Altiris Client Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), and Altiris Deployment Solution Remote pcAnywhere Solution 7.1 (aka 12.5.x and 12.6.x) do not properly handle the client state after abnormal termination of a remote session, which allows remote attackers to obtain access to the client by leveraging an "open client session."
The host-services component in Symantec pcAnywhere 12.5.x through 12.5.3, and IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), does not properly filter login and authentication data, which allows remote attackers to execute arbitrary code via a crafted session on TCP port 5631.
Buffer overflow in Symantec pcAnywhere 11.0.1, 11.5.1, and all other 32-bit versions allows remote attackers to cause a denial of service (application crash) via unknown attack vectors.
Symantec PCAnywhere 10.x and 11, when started as a service, allows attackers to gain SYSTEM privileges via the help interface using AWHOST32.exe.
Symantec pcAnywhere 10.5x and 11.x before 11.5, with "Launch with Windows" enabled, allows local users with physical access to execute arbitrary commands via the Caller Properties feature.
Symantec pcAnywhere 12.5 uses weak default permissions for the "Symantec\pcAnywhere\Hosts" folder, which allows local users to gain privileges by inserting a superuser .cif (aka caller or CallerID) file into the folder, and then using a pcAnywhere client to login as a local administrator.
Symantec pcAnywhere 12.5.x through 12.5.3, and IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), uses world-writable permissions for product-installation files, which allows local users to gain privileges by modifying a file.
pcAnywhere 8.x and 9.0 allows remote attackers to cause a denial of service via a TCP SYN scan, e.g. by nmap.
PCAnywhere allows remote attackers to cause a denial of service by terminating the connection before PCAnywhere provides a login prompt.
Symantec pcAnywhere 8.0 allows remote attackers to cause a denial of service (CPU utilization) via a large amount of data to port 5631.
Symantec pcAnywhere through 12.5.3, Altiris IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), Altiris Client Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), and Altiris Deployment Solution Remote pcAnywhere Solution 7.1 (aka 12.5.x and 12.6.x) allow remote attackers to cause a denial of service (application crash or hang) via (1) malformed data from a client, (2) malformed data from a server, or (3) an invalid response.
The awhost32 service in Symantec pcAnywhere through 12.5.3, Altiris IT Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), Altiris Client Management Suite pcAnywhere Solution 7.0 (aka 12.5.x) and 7.1 (aka 12.6.x), and Altiris Deployment Solution Remote pcAnywhere Solution 7.1 (aka 12.5.x and 12.6.x) allows remote attackers to cause a denial of service (daemon crash) via a crafted TCP session on port 5631.
The \Device\SymEvent driver in Symantec Norton Personal Firewall 2006 9.1.0.33, and other versions of Norton Personal Firewall, Internet Security, AntiVirus, SystemWorks, Symantec Client Security SCS 1.x, 2.x, 3.0, and 3.1, Symantec AntiVirus Corporate Edition SAVCE 8.x, 9.x, 10.0, and 10.1, Symantec pcAnywhere 11.5 only, and Symantec Host, allows local users to cause a denial of service (system crash) via invalid data, as demonstrated by calling DeviceIoControl to send the data.
Symantec pcAnywhere 11.5.x and 12.0.x retains unencrypted login credentials for the most recent login within process memory, which allows local administrators to obtain the credentials by reading process memory, a different vulnerability than CVE-2006-3785.
Format string vulnerability in Symantec pcAnywhere before 12.5 SP1 allows local users to read and modify arbitrary memory locations, and cause a denial of service (application crash) or possibly have unspecified other impact, via format string specifiers in the pathname of a remote control file (aka .CHF file).
Symantec pcAnywhere 12.5 uses weak integrity protection for .cif (aka caller or CallerID) files, which allows local users to generate a custom .cif file and modify the superuser flag.
Symantec pcAnywhere 12.5 obfuscates the passwords in a GUI textbox with asterisks but does not encrypt them in the associated .cif (aka caller or CallerID) file, which allows local users to obtain the passwords from the window using tools such as Nirsoft Asterwin.