Improper input validation in Apache Solr
CVE-2020-13941
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.039 (90.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Apache Solr
- Apache Solr — versions Prior to 8.6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/rf54e7912b7d2b72c63ec54a7afa4adcbf16268dcc63253767… (Mailing List, Vendor Advisory)
- lists.apache.org/thread.html/rbcd9dff009ed19ffcc2b09784595fc1098fc802a5472f8179… (mailing-list)
- lists.apache.org/thread.html/rc400db37710ee79378b6c52de3640493ff538c2beb41cefdb… (mailing-list)
- lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153… (mailing-list)
Frequently asked questions
- What is CVE-2020-13941?
- CVE-2020-13941 is a high-severity vulnerability in Apache Solr, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2020-08-17.
- How severe is CVE-2020-13941?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-13941 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.