Apache Solr up to 6.6.6/7.7.3/8.6.2 API improper authorization

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CVSS Meta Temp Score
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CTI Interest Score
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8.5$5k-$25k0.00

A vulnerability has been found in Apache Solr up to 6.6.6/7.7.3/8.6.2 and classified as critical. Affected by this vulnerability is an unknown code block of the component API. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-285. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented 10/14/2020. It is possible to read the advisory at lists.apache.org. This vulnerability is known as CVE-2020-13957 since 06/08/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/19/2020). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CVSSv2infoedit

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-285
ATT&CK: T1548.002

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

06/08/2020 CVE assigned
10/14/2020 +128 days Advisory disclosed
10/14/2020 +0 days VulDB entry created
11/19/2020 +36 days VulDB last update

Sourcesinfoedit

Vendor: https://www.apache.org/

Advisory: lists.apache.org
Status: Not defined
Confirmation: 🔒

CVE: CVE-2020-13957 (🔒)

Entryinfoedit

Created: 10/14/2020 02:08 PM
Updated: 11/19/2020 05:02 PM
Changes: (14) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai
Complete: 🔍

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