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.)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4508-1 advisory.

    It was discovered that StoreBackup did not properly manage lock files.

    A local attacker could use this issue to cause a denial of service or

    escalate privileges and run arbitrary code. (CVE-2020-7040)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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.

For Debian 8 'Jessie', this problem has been fixed in version 3.2.1-1+deb8u1.

We recommend that you upgrade your storebackup packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for storeBackup fixes the following issues :

  - CVE-2020-7040: Fixed a symlink attack which could lead     to denial of service (boo#1156767).

ID	Name	Product	Family	Severity
140642	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : StoreBackup vulnerability (USN-4508-1)	Nessus	Ubuntu Local Security Checks	high
133509	Debian DLA-2095-1 : storebackup security update	Nessus	Debian Local Security Checks	high
133341	openSUSE Security Update : storeBackup (openSUSE-2020-119)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2020-7040

high

Tenable Plugins

high

high

high