Improper Authentication in LXS
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-18641 |
| CWE-ID | CWE-287 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
LXS Client/Desktop applications / Virtualization software |
| Vendor | Linux Containers |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Improper Authentication
EUVDB-ID: #VU34830
Risk: High
CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2017-18641
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
In LXC 2.0, many template scripts download code over cleartext HTTP, and omit a digital-signature check, before running it to bootstrap containers.
MitigationInstall update from vendor's website.
Vulnerable software versionsLXS: 2.0.0
CPE2.3 External linkshttps://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1661447
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
