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.

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.

The (1) extract_keys_from_pdf and (2) fill_pdf functions in pdf_ext.py in logilab-commons before 0.61.0 allows local users to overwrite arbitrary files and possibly have other unspecified impact via a symlink attack on /tmp/toto.fdf.

opensuse-updater in openSUSE 10.2 allows local users to access arbitrary files via a symlink attack.

acroread in Adobe Acrobat Reader 8.1.2 allows local users to overwrite arbitrary files via a symlink attack on temporary files related to SSL certificate handling.

The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, allows local users to create or overwrite arbitrary files via a symlink attack on the X11 user directory in /run/user/.

systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.

Gummi 0.6.5 allows local users to write to arbitrary files via a symlink attack on a temporary dot file that uses the name of an existing file and a (1) .aux, (2) .log, (3) .out, (4) .pdf, or (5) .toc extension for the file name, as demonstrated by .thesis.tex.aux.

In open buildservice 2.6 before 2.6.3, 2.5 before 2.5.7 and 2.4 before 2.4.8 the source service patch application could generate non-standard files like symlinks or device nodes, which could allow buildservice users to break of confinement or cause denial of service attacks on the source service.

GNU patch 2.7.1 allows remote attackers to write to arbitrary files via a symlink attack in a patch file.

A UNIX Symbolic Link (Symlink) Following vulnerability in the clone-master-clean-up.sh script of clone-master-clean-up in SUSE Linux Enterprise Server 12 SP3, SUSE Linux Enterprise Server 15 SP1; openSUSE Factory allows local attackers to delete arbitrary files. This issue affects: SUSE Linux Enterprise Server 12 SP3 clone-master-clean-up version 1.6-4.6.1 and prior versions. SUSE Linux Enterprise Server 15 SP1 clone-master-clean-up version 1.6-3.9.1 and prior versions. openSUSE Factory clone-master-clean-up version 1.6-1.4 and prior versions.

cache.py in Suds 0.4, when tempdir is set to None, allows local users to redirect SOAP queries and possibly have other unspecified impact via a symlink attack on a cache file with a predictable name in /tmp/suds/.

storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to privilege escalation. (Local users can also create a plain file named /tmp/storeBackup.lock to block use of storeBackup until an admin manually deletes that file.)

Time of Check - Time of Use (TOCTOU) vulnerability in Quick Heal Total Security prior to 12.1.1.27 allows a local attacker to achieve privilege escalation, potentially leading to deletion of system files. This is achieved through exploiting the time between detecting a file as malicious and when the action of quarantining or cleaning is performed, and using the time to replace the malicious file by a symlink.

GNOME Display Manager (gdm) 2.x before 2.32.1 allows local users to change the ownership of arbitrary files via a symlink attack on a (1) dmrc or (2) face icon file under /var/cache/gdm/.

Trendnet AC2600 TEW-827DRU version 2.08B01 contains a symlink vulnerability in the bittorrent functionality. If enabled, the bittorrent functionality is vulnerable to a symlink attack that could lead to remote code execution on the device. If an end user inserts a flash drive with a malicious symlink on it that the bittorrent client can write downloads to, then a user is able to download arbitrary files to any desired location on the devices filesystem, which could lead to remote code execution. Example directories vulnerable to this include "config", "downloads", and "torrents", though it should be noted that "downloads" is the only vector that allows for arbitrary files to be downloaded to arbitrary locations.

GNOME Display Manager (gdm) before 2.21.1 allows local users to change permissions of arbitrary directories via a symlink attack on /tmp/.X11-unix/.

Windows Image Acquisition Elevation of Privilege Vulnerability

(1) contrib/gforge-3.0-cronjobs.patch, (2) cronjobs/homedirs.php, (3) deb-specific/fileforge.pl, (4) deb-specific/group_dump_update.pl, (5) deb-specific/ssh_dump_update.pl, (6) deb-specific/user_dump_update.pl, (7) plugins/scmbzr/common/BzrPlugin.class.php, (8) plugins/scmcvs/common/CVSPlugin.class.php, (9) plugins/scmcvs/cronjobs/cvs.php, (10) plugins/scmcvs/cronjobs/ssh_create.php, (11) plugins/scmgit/common/GitPlugin.class.php, (12) plugins/scmsvn/common/SVNPlugin.class.php, (13) plugins/wiki/cronjobs/create_groups.php, (14) utils/cvs1/cvscreate.sh, and (15) utils/include.pl in FusionForge 5.0, 5.1, and 5.2 allows local users to change arbitrary file permissions, obtain sensitive information, and have other unspecified impacts via a (1) symlink or (2) hard link attack on certain files.

The (1) tomcat5, (2) tomcat6, and (3) tomcat7 init scripts, as used in the RPM distribution of Tomcat for JBoss Enterprise Web Server 1.0.2 and 2.0.0, and Red Hat Enterprise Linux 5 and 6, allow local users to change the ownership of arbitrary files via a symlink attack on (a) tomcat5-initd.log, (b) tomcat6-initd.log, (c) catalina.out, or (d) tomcat7-initd.log.

The abrt-hook-ccpp help program in Automatic Bug Reporting Tool (ABRT) before 2.7.1 allows local users with certain permissions to gain privileges via a symlink attack on a file with a predictable name, as demonstrated by /var/tmp/abrt/abrt-hax-coredump or /var/spool/abrt/abrt-hax-coredump.

Monkey HTTP Daemon 0.9.3 might allow local users to overwrite arbitrary files via a symlink attack on a PID file, as demonstrated by a pathname different from the default /var/run/monkey.pid pathname.

Microsoft Office Click-To-Run Elevation of Privilege Vulnerability

Windows Search Service Elevation of Privilege Vulnerability

The init script in the Debian x11-common package before 1:7.6+12 is vulnerable to a symlink attack that can lead to a privilege escalation during package installation.

The LiveUpdate capability (liveupdate.sh) in Symantec AntiVirus Scan Engine 4.0 and 4.3 for Red Hat Linux allows local users to create or append to arbitrary files via a symlink attack on /tmp/LiveUpdate.log.

Windows Installer Elevation of Privilege Vulnerability

The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.

elf/dl-load.c in ld.so in the GNU C Library (aka glibc or libc6) through 2.11.2, and 2.12.x through 2.12.1, does not properly handle a value of $ORIGIN for the LD_AUDIT environment variable, which allows local users to gain privileges via a crafted dynamic shared object (DSO) located in an arbitrary directory.

BSD pppd allows local users to change the permissions of arbitrary files via a symlink attack on a file that is specified as a tty device.

pam_motd (aka the MOTD module) in libpam-modules before 1.1.0-2ubuntu1.1 in PAM on Ubuntu 9.10 and libpam-modules before 1.1.1-2ubuntu5 in PAM on Ubuntu 10.04 LTS allows local users to change the ownership of arbitrary files via a symlink attack on .cache in a user's home directory, related to "user file stamps" and the motd.legal-notice file.

Chip Salzenberg Deliver allows local users to cause a denial of service, obtain sensitive information, and possibly change the ownership of arbitrary files via a symlink attack on an unspecified file.

The prerm script in axyl 2.1.7 allows local users to overwrite arbitrary files via a symlink attack on the axyl.conf temporary file.

flamethrower in flamethrower 0.1.8 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/multicast.tar.##### temporary file.

vdrleaktest in Video Disk Recorder (aka vdr-dbg or vdr) 1.6.0 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/memleaktest.log temporary file.

Windows User Profile Service Elevation of Privilege Vulnerability

find_flags in Kitware GCC-XML (gccxml) 0.9.0 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/*.cxx temporary file.

filters/any-UTF8 in konwert 1.8 allows local users to delete arbitrary files via a symlink attack on a /tmp/any-##### temporary file.

faxspool in mgetty 1.1.36 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/faxsp.##### temporary file.

mkmailpost in newsgate 1.6 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/mmp##### temporary file.

test_parser.py in mayavi 1.5 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/err.log temporary file.

The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.

mailscanner 4.68.8 and other versions before 4.74.16-1 might allow local users to overwrite arbitrary files via a symlink attack on certain temporary files used by the (1) f-prot-autoupdate, (2) clamav-autoupdate, (3) avast-autoupdate, and (4) f-prot-6-autoupdate scripts in /etc/MailScanner/autoupdate/; the (5) bitdefender-wrapper, (6) kaspersky-wrapper, (7) clamav-wrapper, and (8) rav-wrapper scripts in /etc/MailScanner/wrapper/; the (9) Quarantine.pm, (10) TNEF.pm, (11) MessageBatch.pm, (12) WorkArea.pm, and (13) SA.pm scripts in /usr/share/MailScanner/MailScanner/; (14) /usr/sbin/MailScanner; and (15) scripts that load the /etc/MailScanner/mailscanner.conf.with.mcp configuration file.

gdrae in gdrae 0.1 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/gdrae/palabra temporary file.

init in initramfs-tools 0.92f allows local users to overwrite arbitrary files via a symlink attack on the /tmp/initramfs.debug temporary file. NOTE: the vendor disputes this vulnerability, stating that "init is [used in] a single-user context; there's no possibility that this is exploitable.

arb-kill in arb 0.0.20071207.1 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/arb_pids_*_* temporary file.

perl.robot in realtimebattle 1.0.8 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/perl.robot.log temporary file.

An improper link resolution before file access ('link following') vulnerability exists in the Palo Alto Networks GlobalProtect app on Windows that enables a local attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges under certain circumstances. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.10 on Windows. GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.5 on Windows. This issue does not affect GlobalProtect app on other platforms.

Windows Search Service Elevation of Privilege Vulnerability

snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1