XXE in Apache Nutch
CVE-2021-23901
An XML external entity (XXE) injection vulnerability was discovered in the Nutch DmozParser and is known to affect Nutch versions < 1.18. XML external entity injection (also known as XXE) is a web security vulnerability that allows an attacker to interfere with an application's processing of XML data. It often allows an attacker to view files on the application server filesystem, and to interact with any back-end or external systems that the application itself can access. This issue is fixed in Apache Nutch 1.18.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.044 (91.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: +0.001
Affected products
- Apache Nutch
- Apache Software Foundation Nutch — versions Apache Nutch
- NetApp Snap Creator Framework
Weakness classification (CWE)
References
- lists.apache.org/thread.html/r090321840b44cc91086c4e317bf2baffa270749dde6c1273b… (Mailing List, Vendor Advisory)
- issues.apache.org/jira/browse/NUTCH-2841 (Patch, Issue Tracking, Vendor Advisory)
- lists.apache.org/thread.html/r7ddfd680aa7ea001ca8da63bb23e3f8caa095a8b4f2261e46… (mailing-list)
- lists.apache.org/thread.html/r5e2f7737b42c73a3325f3c2c8cdee1ec27631b3a0e144104d… (mailing-list)
- security.netapp.com/advisory/ntap-20210513-0003/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23901?
- CVE-2021-23901 is a critical-severity vulnerability in Apache Nutch, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.1/10. Published 2021-01-25.
- How severe is CVE-2021-23901?
- Critical severity. CVSS v3 base score is 9.1 out of 10.