A certain ActiveX control in NOS Microsystems getPlus Download Manager (aka DLM or Downloader) 1.5.2.35, as used in Adobe Download Manager, improperly validates requests involving web sites that are not in subdomains, which allows remote attackers to force the download and installation of arbitrary programs via a crafted name for a download site.

Stack-based buffer overflow in the getPlus ActiveX control in gp.ocx 1.2.2.50 in NOS Microsystems getPlus Download Manager, as used for the Adobe Reader 8.1 installation process and other downloads, allows remote attackers to execute arbitrary code via unspecified vectors, a different issue than CVE-2008-4817.

NOS Microsystems getPlus Download Manager, as used in Adobe Reader 1.6.2.36 and possibly other versions, Corel getPlus Download Manager before 1.5.0.48, and possibly other products, installs NOS\bin\getPlusHelperSvc.exe with insecure permissions (Everyone:Full Control), which allows local users to gain SYSTEM privileges by replacing getPlusHelperSvc.exe with a Trojan horse program, as demonstrated by use of getPlus Download Manager within Adobe Reader. NOTE: within Adobe Reader, the scope of this issue is limited because the program is deleted and the associated service is not automatically launched after a successful installation and reboot.