Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Storebackup | Storebackup | <= 3.5 |
| Debian | Debian Linux | 8.0 |
| Opensuse | Backports Sle | 15.0 |
| Opensuse | Leap | 15.1 |
| Canonical | Ubuntu Linux | 16.04 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00054.htmlMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/20/3Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/21/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/22/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/22/3Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/23/1Mailing ListThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-7040Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/02/msg00003.htmlMailing ListThird Party Advisory
- https://seclists.org/oss-sec/2020/q1/20Mailing ListThird Party Advisory
- https://usn.ubuntu.com/4508-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00054.htmlMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/20/3Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/21/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/22/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/22/3Mailing ListThird Party Advisory
FAQ
What is CVE-2020-7040?
CVE-2020-7040 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 fi...
How severe is CVE-2020-7040?
CVE-2020-7040 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-7040?
Check the references section above for vendor advisories and patch information. Affected products include: Storebackup Storebackup, Debian Debian Linux, Opensuse Backports Sle, Opensuse Leap, Canonical Ubuntu Linux.