Path Traversal in Linux Linux_kernel
CVE-2020-8227
Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.225 (97.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- Nextcloud Desktop
- N/a Desktop Client — versions 2.6.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Exploit, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (Exploit, x_refsource_MISC, Broken Link, Vendor Advisory)
- support@hackerone.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2020-8227?
- CVE-2020-8227 is a medium-severity vulnerability in Linux Linux_kernel, classified under Path Traversal. CVSS score: 6.8/10. Published 2020-08-21.
- How severe is CVE-2020-8227?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2020-8227 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.