Information disclosure in kube-rbac-proxy
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-3818 |
| CWE-ID | CWE-300 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
kube-rbac-proxy Server applications / IDS/IPS systems, Firewalls and proxy servers |
| Vendor | Frederic Branczyk |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Man-in-the-middle attack
EUVDB-ID: #VU17255
Risk: Low
CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-3818
CWE-ID:
CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to conduct man-in-the-middle attack.
The vulnerability exists due to improper validation of the X.509 certificates. A remote attacker can conduct MITM-attack and obtain potentially sensitive information or impersonate trusted servers, which will aid in further attacks.
MitigationUpdate to version 0.4.1.
Vulnerable software versionskube-rbac-proxy: 0.1.0 - 0.4.0
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=1668961
http://github.com/brancz/kube-rbac-proxy/pull/27/files
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 send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
