PT-2021-24132 · Apache · Apache Solr
Published
2021-12-23
·
Updated
2024-03-06
·
CVE-2021-44548
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
Apache Solr versions prior to 8.11.1
Description:
An Improper Input Validation vulnerability in DataImportHandler of Apache Solr allows an attacker to provide a Windows UNC path, resulting in an SMB network call being made from the Solr host to another host on the network. If the attacker has wider access to the network, this may lead to SMB attacks, which may result in the exfiltration of sensitive data such as OS user hashes (NTLM/LM hashes), or in case of misconfigured systems, SMB Relay Attacks which can lead to user impersonation on SMB Shares or, in a worse-case scenario, Remote Code Execution. This issue only affects Windows.
Recommendations:
For Apache Solr versions prior to 8.11.1, update to version 8.11.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the DataImportHandler to minimize the risk of exploitation. Avoid using Windows UNC paths in the DataImportHandler until the issue is resolved.
Fix
RCE
Path traversal
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Related Identifiers
Affected Products
Apache Solr