CVE-2020-7040
Ubuntu Security Notice USN-4508-1
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.)
El archivo storeBackup.pl en storeBackup versiones hasta 3.5, se basa en el nombre de ruta /tmp/storeBackup.lock, que permite ataques de tipo symlink que posiblemente conllevan a una escalada de privilegios. (Los usuarios locales también pueden crear un archivo simple llamado /tmp/storeBackup.lock para bloquear el uso de storeBackup hasta que un administrador elimine manualmente ese archivo).
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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-01-14 CVE Reserved
- 2020-01-21 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2020/01/20/3 | Mailing List |
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| http://www.openwall.com/lists/oss-security/2020/01/21/2 | Mailing List |
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| http://www.openwall.com/lists/oss-security/2020/01/22/2 | Mailing List |
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| http://www.openwall.com/lists/oss-security/2020/01/22/3 | Mailing List |
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| http://www.openwall.com/lists/oss-security/2020/01/23/1 | Mailing List |
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| https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-7040 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2020/02/msg00003.html | Mailing List |
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| https://seclists.org/oss-sec/2020/q1/20 | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00054.html | 2023-01-27 |
| URL | Date | SRC |
|---|---|---|
| https://usn.ubuntu.com/4508-1 | 2023-01-27 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Storebackup Search vendor "Storebackup" | Storebackup Search vendor "Storebackup" for product "Storebackup" | <= 3.5 Search vendor "Storebackup" for product "Storebackup" and version " <= 3.5" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Backports Sle Search vendor "Opensuse" for product "Backports Sle" | 15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Backports Sle Search vendor "Opensuse" for product "Backports Sle" | 15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0" | sp1 |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04" | lts |
Affected
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