SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2019-0193

Apache Solr DataImportHandler Code Injection Vulnerability

KEVHIGH 7.2EPSS 83.5%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 10 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

In Apache Solr, the DataImportHandler, an optional but popular module to pull in data from databases and other sources, has a feature in which the whole DIH configuration can come from a request's "dataConfig" parameter. The debug mode of the DIH admin screen uses this to allow convenient debugging / development of a DIH config. Since a DIH config can contain scripts, this parameter is a security risk. Starting with version 8.2.0 of Solr, use of this parameter requires setting the Java System property "enable.dih.dataConfigParam" to true.

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
83.55% probability · 100th percentile
CISA KEV
Listed 10 December 2021 · due 10 June 2022
Weakness
CWE-94
Affected
apache/solr · debian/debian linux
Source
security@apache.org

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-0193

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.