ejabberd bitrock_installer.log symlink

ejabberd-bitrockinstaller-symlink (26221) The risk level is classified as MediumMedium Risk


ejabberd could allow a local attacker to launch a symlink attack. The ejabberd-1.1.1_1-linux-installer.bin file creates the bitrock_installer.log file insecurely. A local attacker could exploit this vulnerability to create or overwrite arbitrary files on the system with elevated privileges or cause a denial of service.


File Manipulation


Upgrade to the latest version of ejabberd (1.1.1_2 or later), available from the ejabberd Web site. See References.


  • BugTraq Mailing List, Tue May 02 2006 - 06:04:26 CDT: Ejabberd : Symlink vulnerability during installation process.
  • BugTraq Mailing List, Wed May 03 2006 - 16:23:22 CDT: Re: Ejabberd : Symlink vulnerability during installation process.
  • ejabberd Web site: What is ejabberd ?.
  • BID-17804: EjabberD Installer Insecure Temporary File Creation Vulnerability
  • CVE-2006-2221: A third-party installer generation tool, possibly BitRock InstallBuilder, as used in products including Process-one ejabberd 1.1.1_1 and earlier, generates an installer that allows local users to cause a denial of service via a symlink attack on the bitrock_installer.log temporary file. NOTE: it is possible that this vulnerability is present in other products that use this installer.
  • OSVDB ID: 25215: BitRock InstallBuilder bitrock_installer.log Symlink Arbitrary File Overwrite
  • SA19928: ejabberd Insecure Temporary File Creation Vulnerability
  • SA19954: BitRock InstallBuilder Insecure Temporary File Creation

Platforms Affected:

  • Process-One ejabberd 1.1.1_1


May 02, 2006

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