PT-2021-24136 · National Library Of The Netherlands · Multiner

Jorgectf · Published 2021-12-08 · Updated 2021-12-13 · CVE-2021-44557

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions: National Library of the Netherlands multiNER version <= c0440948057afc6e3d6b4903a7c05e666b94a3bc

Description: The issue is related to an XML External Entity (XXE) vulnerability in the multiNER/ner.py file. This vulnerability can be exploited by a malicious XML stream, potentially leading to the leakage of internal files or causing a Denial of Service (DoS).

Recommendations: For National Library of the Netherlands multiNER version <= c0440948057afc6e3d6b4903a7c05e666b94a3bc, consider disabling the XML parsing functionality in the ner.py file as a temporary workaround to prevent exploitation. Restrict access to the multiNER/ner.py file to minimize the risk of internal file leakage or DoS. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2021-44557

Affected Products

Multiner

References · 4

• https://github.com/KBNLresearch/multiNER/pull/3 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-44557 · Security Note
• https://osv.dev/vulnerability/CVE-2021-44557 · Vendor Advisory
• https://github.com/KBNLresearch/multiNER · Note