CVE-2021-44548
moderate-risk
Published 2021-12-23
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), * 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 affects all Apache Solr versions prior to 8.11.1. This issue only affects Windows.
Do I need to act?
~
6.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (4)
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220114-0005/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220114-0005/
46
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
9/34 · Low
Exposure
5/34 · Minimal