McAfee VirusScan: Insecure DT_RPATH
Gentoo Linux Security Advisory
||GLSA 200612-15 / vlnx
||December 14, 2006
||December 14, 2006: 01
All supported architectures
McAfee VirusScan for Linux is distributed with an insecure DT_RPATH,
potentially allowing a remote attacker to execute arbitrary code.
McAfee VirusScan for Linux is a commercial antivirus solution for
Jakub Moc of Gentoo Linux discovered that McAfee VirusScan was
distributed with an insecure DT_RPATH which included the current
working directory, rather than $ORIGIN which was probably intended.
An attacker could entice a VirusScan user to scan an arbitrary file and
execute arbitrary code with the privileges of the VirusScan user by
tricking the dynamic loader into loading an untrusted ELF DSO. An
automated system, such as a mail scanner, may be subverted to execute
arbitrary code with the privileges of the process invoking VirusScan.
Do not scan files or execute VirusScan from an untrusted working
As VirusScan verifies that it has not been modified before executing,
it is not possible to correct the DT_RPATH. Furthermore, this would
violate the license that VirusScan is distributed under. For this
reason, the package has been masked in Portage pending the resolution
of this issue.
Code Listing 3.1: Resolution
# emerge --ask --verbose --unmerge "app-antivirus/vlnx"