XML External Entity injection in Libxml2



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-40896
CWE-ID CWE-611
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Libxml2
Universal components / Libraries / Libraries used by multiple products

Vendor Gnome Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) XML External Entity injection

EUVDB-ID: #VU96997

Risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-40896

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

Libxml2: 2.11.0 - 2.13.2

CPE2.3 External links

https://gitlab.gnome.org/GNOME/libxml2/-/issues/761


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.



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