svnserve is vulnerable to a local privilege escalation vulnerability via symlink attack.

ID F8A913CC-1322-11E3-8FFA-20CF30E32F6D
Type freebsd
Reporter FreeBSD
Modified 2013-08-30T00:00:00


Subversion Project reports:

svnserve takes a --pid-file option which creates a file containing the process id it is running as. It does not take steps to ensure that the file it has been directed at is not a symlink. If the pid file is in a directory writeable by unprivileged users, the destination could be replaced by a symlink allowing for privilege escalation. svnserve does not create a pid file by default. All versions are only vulnerable when the --pid-file=ARG option is used.