XML External Entity injection in Glances package

1) XML External Entity injection

EUVDB-ID: #VU55485

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23418

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

glances: 1.0 - 3.2.0

External links

http://github.com/nicolargo/glances/commit/85d5a6b4af31fcf785d5a61086cbbd166b40b07a
http://github.com/nicolargo/glances/issues/1025
http://snyk.io/vuln/SNYK-PYTHON-GLANCES-1311807
http://github.com/nicolargo/glances/commit/9d6051be4a42f692392049fdbfc85d5dfa458b32
http://github.com/nicolargo/glances/commit/4b87e979afdc06d98ed1b48da31e69eaa3a9fb94

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.