Privilege escalation in Samba Cifs-utils
CVE-2021-20208
A flaw was found in cifs-utils in versions before 6.13. A user when mounting a krb5 CIFS file system from within a container can use Kerberos credentials of the host. The highest threat from this vulnerability is to data confidentiality an…
EPSS: 0.006 (46.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N.
Affected products
- Samba Cifs-utils
- Fedoraproject Fedora — versions 33, 34, 35
- Redhat Enterprise_linux — versions 7.0, 8.0
- N/a Cifs-utils — versions cifs-utils 6.13
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2021-20208?
- CVE-2021-20208 is a medium-severity vulnerability in Samba Cifs-utils, classified under Incorrect Privilege Assignment. CVSS score: 6.1/10. Published 2021-04-19.
- How severe is CVE-2021-20208?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-20208 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.