CVE-2020-13941

HIGH

Apache Solr < 8.6.0 - Improper Input Validation

Title source: rule

Description

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Exploits (1)

nomisec WRITEUP

by mbadanoiu · poc

https://github.com/mbadanoiu/CVE-2020-13941

View Code ZIP pw:eip

References (4)

[Mailing List, Vendor Advisory] https://lists.apache.org/thread.html/rf54e7912b7d2b72c63ec54a7afa4adcbf16268dcc63253767dd67d60%40%3Cgeneral.lucene.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1%40%3Ccommits.druid.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/rbcd9dff009ed19ffcc2b09784595fc1098fc802a5472f81795f893be%40%3Ccommits.lucene.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/rc400db37710ee79378b6c52de3640493ff538c2beb41cefdbbdf2ab8%40%3Ccommits.submarine.apache.org%3E

Scores

CVSS v3 8.8

EPSS 0.0280

EPSS Percentile 86.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-20

Status published

Products (2)

apache/solr < 8.6.0

org.apache.solr/solr-parent 0 - 8.6.0Maven

Published Aug 17, 2020

Tracked Since Feb 18, 2026