CVE-2020-7040 — Link Following in Storebackup
Severity
8.1HIGHNVD
EPSS
5.2%
top 10.07%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 21
Latest updateMay 24
Description
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.)
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | Impact: 5.9
Affected Packages5 packages
Also affects: Debian Linux 8.0, Ubuntu Linux 16.04, 18.04, 20.04