Vulnerability identifier: #VU64412
Vulnerability risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-22
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Loki
Web applications /
Other software
Vendor: Grafana Labs
Description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when header value X-Scope-OrgID is used to construct file paths for rules files. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Loki: 2.2.0, 2.1.0, 2.0.0 - 2.0.1, 1.6.0 - 1.6.1, 1.5.0, 1.4.0 - 1.4.1, 1.3.0, 1.2.0, 1.1.0, 1.0.0 - 1.0.2, 0.4.0, 0.3.0, 0.2.0, 0.1.0
External links
http://github.com/grafana/loki/pull/4020#issue-694377133
http://github.com/grafana/loki/releases/tag/v2.3.0
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.