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CVE-2020-7040

Date: January 21, 2020

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.)

Severity Score

Related Resources (14)

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-7040
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00054.html
https://lists.debian.org/debian-lts-announce/2020/02/msg00003.html
https://seclists.org/oss-sec/2020/q1/20
https://security-tracker.debian.org/tracker/CVE-2020-7040
https://nvd.nist.gov/vuln/detail/CVE-2020-7040
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/2020/01/23/1
http://www.openwall.com/lists/oss-security/2020/01/22/3
https://usn.ubuntu.com/4508-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-7040
https://www.mend.io/vulnerability-database/CVE-2020-7040

Severity Score

Weakness Type (CWE)

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

CWE-59

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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