CVE-2020-8831: World writable root owned lock file created in user controllable location
Canonical · Apport
Vendor fix available · Affected: Canonical Apport · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 51% of scored CVEs
DescriptionCVE.org
Apport creates a world writable lock file with root ownership in the world writable /var/lock/apport directory. If the apport/ directory does not exist (this is not uncommon as /var/lock is a tmpfs), it will create the directory, otherwise it will simply continue execution using the existing directory. This allows for a symlink attack if an attacker were to create a symlink at /var/lock/apport, changing apport's lock file location. This file could then be used to escalate privileges, for example. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Canonical · Apportfrom 2.20.1 before 2.20.1-0ubuntu2.23; from 2.20.9 before 2.20.9-0ubuntu7.14; from 2.20.11 before 2.20.11-0ubuntu8.8
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Canonical
- Published
- April 2020
CoverageNo articles yet
No CyberSIXT article names CVE-2020-8831 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.