Apache Solr < 8.11.1 Information Disclosure

critical Nessus Plugin ID 168495

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Synopsis

The remote web server contains a Java application that is affected by an information disclosure vulnerability.

Description

The version of Apache Solr running on the remote host is prior to 8.11.1. It is, therefore, affected by an information disclosure vulnerability due to improper input validation in DataImportHandler. The vulnerability 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 only affects Windows.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Apache Solr version 8.11.1 or later.

Plugin Details

Severity: Critical

ID: 168495

File Name: solr_cve-2021-44548.nasl

Version: 1.2

Type: remote

Family: CGI abuses

Published: 12/8/2022

Updated: 12/9/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-44548

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:apache:solr

Required KB Items: Host/OS, installed_sw/Apache Solr

Exploit Ease: No known exploits are available

Patch Publication Date: 12/13/2021

Vulnerability Publication Date: 12/18/2021

Reference Information

CVE: CVE-2021-44548

Detections

Analytics