In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.

Samba before versions 4.6.1, 4.5.7 and 4.4.11 are vulnerable to a malicious client using a symlink race to allow access to areas of the server file system not exported under the share definition.

systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.

/bin/login in shadow 4.0.18.1 in Debian GNU/Linux, and probably other Linux distributions, allows local users in the utmp group to overwrite arbitrary files via a symlink attack on a temporary file referenced in a line (aka ut_line) field in a utmp entry.

ltpmenu in ltp 20060918 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/runltp.mainmenu.##### temporary file.

Hardlink before 0.1.2 operates on full file system objects path names which can allow a local attacker to use this flaw to conduct symlink attacks.

In libXfont before 1.5.4 and libXfont2 before 2.0.3, a local attacker can open (but not read) files on the system as root, triggering tape rewinds, watchdogs, or similar mechanisms that can be triggered by opening files.

In some configurations an attacker can inject a new executable path into the extensions.load file for osquery and hard link a parent folder of a malicious binary to a folder with known 'safe' permissions. Under those circumstances osquery will load said malicious executable with SYSTEM permissions. The solution is to migrate installations to the 'Program Files' directory on Windows which restricts unprivileged write access. This issue affects osquery prior to v3.4.0.

qemu-make-debian-root in qemu 0.9.1-5 on Debian GNU/Linux allows local users to overwrite arbitrary files via a symlink attack on temporary files and directories.

A vulnerability in the CLI of Cisco ThousandEyes Enterprise Agent could allow an authenticated, local attacker with low privileges to overwrite arbitrary files on the local system of an affected device. This vulnerability is due to improper access controls on files that are on the local file system of an affected device. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system. A successful exploit could allow the attacker to bypass file system permissions and overwrite arbitrary files on the affected device.

The VPN service in AVAST SecureLine before 5.6.4982.470 allows local users to write to arbitrary files via an Object Manager symbolic link from the log directory (which has weak permissions).

userpref.c in libimobiledevice 1.1.4, when $HOME and $XDG_CONFIG_HOME are not set, allows local users to overwrite arbitrary files via a symlink attack on (1) HostCertificate.pem, (2) HostPrivateKey.pem, (3) libimobiledevicerc, (4) RootCertificate.pem, or (5) RootPrivateKey.pem in /tmp/root/.config/libimobiledevice/.

Dell Command Update versions prior to 3.1 contain an Arbitrary File Deletion Vulnerability. A local authenticated malicious user with low privileges potentially could exploit this vulnerability to delete arbitrary files by creating a symlink from the "Temp\ICProgress\Dell_InventoryCollector_Progress.xml" to any targeted file. This issue occurs because permissions on the Temp directory were set incorrectly.

Dell Command Update versions prior to 3.1 contain an Arbitrary File Deletion Vulnerability. A local authenticated malicious user with low privileges potentially could exploit this vulnerability to delete arbitrary files by creating a symlink from the "Temp\IC\ICDebugLog.txt" to any targeted file. This issue occurs because of insecure handling of Temp directory permissions that were set incorrectly.

welcome.py in xdiagnose before 2.5.2ubuntu0.1 allows local users to overwrite arbitrary files via a symlink attack on a temporary file with a predictable name in /tmp.

The quarantine restoration function in Total Defense Anti-virus 11.5.2.28 is vulnerable to symbolic link attacks, allowing files to be written to privileged directories.

Centrify Deployment Manager 2.1.0.283, as distributed in Centrify Suite before 2012.5, allows local users to (1) overwrite arbitrary files via a symlink attack on the adcheckDMoutput temporary file, or (2) overwrite arbitrary files and consequently gain privileges via a symlink attack on the centrify.cmd.0 temporary file.

The _rl_tropen function in util.c in GNU readline before 6.3 patch 3 allows local users to create or overwrite arbitrary files via a symlink attack on a /var/tmp/rltrace.[PID] file.

Dell AppSync, version 4.6.0.x, contain a Symbolic Link (Symlink) Following vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to information tampering.

acinclude.m4, as used in the configure script in PHP 5.5.13 and earlier, allows local users to overwrite arbitrary files via a symlink attack on the /tmp/phpglibccheck file.

lisp/net/browse-url.el in GNU Emacs 24.3 and earlier allows local users to overwrite arbitrary files via a symlink attack on a /tmp/Mosaic.##### temporary file.

include/tests_webservers in Lynis before 1.5.5 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/lynis.*.unsorted file with an easily determined name.

The main function in android_main.cpp in thermald allows local users to write to arbitrary files via a symlink attack on /tmp/thermald.pid.

tag.py in eyeD3 (aka python-eyed3) 7.0.3, 0.6.18, and earlier for Python allows local users to modify arbitrary files via a symlink attack on a temporary file.

An elevation of privilege vulnerability exists in Windows store installer where WindowsApps directory is vulnerable to symbolic link attack, aka 'Microsoft Windows Store Installer Elevation of Privilege Vulnerability'.

Tanium addressed an arbitrary file deletion vulnerability in end-user-cx.

The openTempFile function in goo/gfile.cc in Xpdf and Poppler 0.24.3 and earlier, when running on a system other than Unix, allows local users to overwrite arbitrary files via a symlink attack on temporary files with predictable names.

Tanium addressed an arbitrary file deletion vulnerability in End-User Notifications Endpoint Tools.

src/common/latex.py in Gajim 0.15 allows local users to overwrite arbitrary files via a symlink attack on a temporary latex file, related to the get_tmpfile_name function.

libs/updater.py in GoLismero 0.6.3, and other versions before Git revision 2b3bb43d6867, as used in backtrack and possibly other products, allows local users to overwrite arbitrary files via a symlink attack on GoLismero-controlled files, as demonstrated using Admin/changes.dat.

hammerhead.cc in Hammerhead 2.1.4 allows local users to write to arbitrary files via a symlink attack on (1) /tmp/hammer.log (aka the HH_LOG file) or (2) the REPORT_LOG file.

w3m through 0.5.3 does not properly handle temporary files when the ~/.w3m directory is unwritable, which allows a local attacker to craft a symlink attack to overwrite arbitrary files.

The installer in PEAR 1.9.2 and earlier allows local users to overwrite arbitrary files via a symlink attack on the package.xml file, related to the (1) download_dir, (2) cache_dir, (3) tmp_dir, and (4) pear-build-download directories. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1072.

The installer in PEAR before 1.9.2 allows local users to overwrite arbitrary files via a symlink attack on the package.xml file, related to the (1) download_dir, (2) cache_dir, (3) tmp_dir, and (4) pear-build-download directories, a different vulnerability than CVE-2007-2519.

In HTSlib 1.8, a race condition in cram/cram_io.c might allow local users to overwrite arbitrary files via a symlink attack.

fuse 2.8.5 and earlier does not properly handle when /etc/mtab cannot be updated, which allows local users to unmount arbitrary directories via a symlink attack.

The undo save quit routine in the kernel in Blender 2.5, 2.63a, and earlier allows local users to overwrite arbitrary files via a symlink attack on the quit.blend temporary file. NOTE: this issue might be a regression of CVE-2008-1103.

checkpath in OpenRC through 0.42.1 might allow local users to take ownership of arbitrary files because a non-terminal path component can be a symlink.

pimd 2.1.5 and possibly earlier versions allows user-assisted local users to overwrite arbitrary files via a symlink attack on (1) pimd.dump when a USR1 signal is sent, or (2) pimd.cache when USR2 is sent.

The SPICE Firefox plug-in (spice-xpi) 2.4, 2.3, 2.2, and possibly other versions allows local users to overwrite arbitrary files via a symlink attack on the usbrdrctl log file, which has a predictable name.

The default configuration of libsdp.conf in libsdp 1.1.104 and earlier creates log files in /tmp, which allows local users to overwrite arbitrary files via a (1) symlink or (2) hard link attack on the libsdp.log.##### temporary file.

keepalived 2.0.8 didn't check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats. This allowed local users to overwrite arbitrary files if fs.protected_symlinks is set to 0, as demonstrated by a symlink from /tmp/keepalived.data or /tmp/keepalived.stats to /etc/passwd.

In supportutils, before version 3.1-5.7.1 and if pacemaker is installed on the system, an unprivileged user could have overwritten arbitrary files in the directory that is used by supportutils to collect the log files.

The configure script in gnash 0.8.8 allows local users to overwrite arbitrary files via a symlink attack on the (1) /tmp/gnash-configure-errors.$$, (2) /tmp/gnash-configure-warnings.$$, or (3) /tmp/gnash-configure-recommended.$$ files.

McAfee Total Protection prior to 16.0.50 allows attackers to elevate user privileges due to Improper Link Resolution via registry keys. This could enable a user with lower privileges to execute unauthorized tasks.

PGTStorage/pgt-file.php in phpCAS before 1.1.3, when proxy mode is enabled, allows local users to overwrite arbitrary files via a symlink attack on an unspecified file.

mailscanner before 4.79.11-2.1 might allow local users to overwrite arbitrary files via a symlink attack on certain temporary files. NOTE: this issue exists because of an incomplete fix for CVE-2008-5313.

emesenelib/ProfileManager.py in emesene before 1.6.2 allows local users to overwrite arbitrary files via a symlink attack on the emsnpic temporary file.

The edit_cmd function in crontab.c in (1) cronie before 1.4.4 and (2) Vixie cron (vixie-cron) allows local users to change the modification times of arbitrary files, and consequently cause a denial of service, via a symlink attack on a temporary file in the /tmp directory.

Folder Manager in Apple Mac OS X 10.5.8, and 10.6 before 10.6.4, allows local users to delete arbitrary folders via a symlink attack in conjunction with an unmount operation on a crafted volume, related to the Cleanup At Startup folder.