Is CVE-2020-13957 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 79%.

What products does CVE-2020-13957 affect?

Tracked products affected include Apache Solr. Check the version you run to see whether it is affected.

How do I fix CVE-2020-13957?

Apply the vendor fix promptly. Upgrade affected products to a fixed version.

CVE-2020-13957

Q: What is CVE-2020-13957?

CVE-2020-13957 is a critical-severity software vulnerability (Incorrect authorization) with a CVSS score of 9.8. Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authenticatio

CRITICAL severity · CVSS 9.8 · Incorrect authorization

9.8CVSS CRITICAL

Summary

Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)79%

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

Affected products we track (1)

Apache Solr

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

NVD record
https://lists.apache.org/thread.html/r13a728994c60be5b5a7049282b5c926dac1fc6a9a0b2362f6adfa573%40%3Cissues.lucene.apache.org%3E
https://lists.apache.org/thread.html/r1c783d3d81ba62f3381a17a4d6c826f7dead3a132ba42349c90df075%40%3Ccommits.lucene.apache.org%3E
https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/r2236fdf99ac3efbfc36c2df96d3a88f822baa6f45e13fec7ff558e34%40%3Cdev.bigtop.apache.org%3E
https://lists.apache.org/thread.html/r226c1112bb41e7cd427862d875eff9877a20a40242c2542f4dd39e4a%40%3Cissues.lucene.apache.org%3E
https://lists.apache.org/thread.html/r2a6600fe9afd502c04d26fd112823ec3f3c3ad1b4a289d10567a78a0%40%3Cdev.bigtop.apache.org%3E
https://lists.apache.org/thread.html/r2f8d33a4de07db9459fb2a98a1cd39747066137636b53f84a13e5628%40%3Cissues.lucene.apache.org%3E
https://lists.apache.org/thread.html/r3d1e24a73e6bffa1d6534e1f34c8f5cbd9999495e7d933640f4fa0ed%40%3Cissues.lucene.apache.org%3E