Vulnerability identifier: #VU29537
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:
Helm
Web applications /
CMS
Vendor: The Helm Project
Description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences when installing Helm plugins from a tar archive over HTTP. A remote attacker can trick the victim to install a malicious plugin that can inject a relative path into a plugin archive, and copy a file outside of the intended directory.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Helm: 3.0.0 - 3.2.3
External links
http://github.com/helm/helm/commit/0ad800ef43d3b826f31a5ad8dfbb4fe05d143688
http://github.com/helm/helm/releases/tag/v3.2.4
http://github.com/helm/helm/security/advisories/GHSA-qq3j-xp49-j73f
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.