Vulnerability CVE-2020-7040
Published: 2020-01-21   Modified: 2020-01-22

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.)

Type:

CWE-59

 (Improper Link Resolution Before File Access ('Link Following'))

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Storebackup -> Storebackup 
Opensuse -> Backports sle 
Opensuse -> LEAP 
Debian -> Debian linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00054.html
http://www.openwall.com/lists/oss-security/2020/01/20/3
http://www.openwall.com/lists/oss-security/2020/01/21/2
http://www.openwall.com/lists/oss-security/2020/01/22/2
http://www.openwall.com/lists/oss-security/2020/01/22/3
http://www.openwall.com/lists/oss-security/2020/01/23/1
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-7040
https://lists.debian.org/debian-lts-announce/2020/02/msg00003.html
https://seclists.org/oss-sec/2020/q1/20
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