Multiple vulnerabilities in Kubernetes
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-1002102 CVE-2017-1002101 CVE-2018-1002100 |
| CWE-ID | CWE-264 CWE-200 CWE-22 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Kubernetes Server applications / Frameworks for developing and running applications |
| Vendor | Kubernetes |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Denial of service
EUVDB-ID: #VU11122
Risk: Low
CVSSv3.1: 4 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-1002102
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows an adjacent authenticated attacker to cause DoS condition on the target system.
The weakness exists due to improper atomic writer volume handling when using a container with secret, configMap, projected, or downwardAPI volume. An adjacent attacker can delete arbitrary files and directories and cause the service to crash.
Update to versions 1.10.0-beta.3 or 1.10.0-beta.4.
Vulnerable software versionsKubernetes: 1.3.0 - 1.9.3
External linkshttp://github.com/kubernetes/kubernetes/issues/60814
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Information disclosure
EUVDB-ID: #VU11127
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-1002101
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to obtain potentially sensitive information on the target system.
The weakness exists due to improper security restrictions when using subpath volume mounts with any volume type. A remote attacker can gain unauthorized access to files and directories.
Update to versions 1.7.14, 1.8.9 or 1.9.4.
Vulnerable software versionsKubernetes: 1.3.0 - 1.9.3
External linkshttp://github.com/kubernetes/kubernetes/issues/60813
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Path traversal
EUVDB-ID: #VU14124
Risk: Low
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-1002100
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to conduct path traversal attack on the target system.
The vulnerability exists due to the kubectl cp command insecurely handles tar data returned from the container. A remote unauthenticated attacker can conduct path traversal attack and overwrite arbitrary local files.
MitigationUpdate to version 1.9.6.
Kubernetes: 1.5.0 - 1.9.3
External linkshttp://github.com/kubernetes/kubernetes/issues/61297
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
