Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-20208 |
CWE-ID | CWE-269 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
cifs-utils Server applications / Other server solutions |
Vendor | Distrotech |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU63954
Risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20208
CWE-ID:
CWE-269 - Improper Privilege Management
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges.
The vulnerability exists due to improper privilege management in cifs-utils. A local user when mounting a krb5 CIFS file system from within a container can use Kerberos credentials of the host.
MitigationInstall updates from vendor's website.
Vulnerable software versionscifs-utils: 6.0 - 6.12
CPE2.3http://bugzilla.samba.org/show_bug.cgi?id=14651
http://bugzilla.redhat.com/show_bug.cgi?id=1921116
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z4BZSJXROEFHYATAAHHRR6P3HUSMPQB3/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2W4HSDIWXXNQBUW5ZS37RQMLJ7THK5AS/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/66WJ3SVBHCSNQZAWSGLB6FBOCFU45FFG/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.